UNIT 15. COMPUTERS

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Exercise1
1 I have already visited. ...
2 Jonh has read the letter from Mary already. ....
3 We haven't begun...
4 Nancy have been. ...
5 They hasn't started. ..
6 have been
7 have gone
8 has already explained
9 have already took
10 hasn't finished
Exercise 2
1 have called
2 have met
3 has flown
Exercise 3
1 C
2A
3D
4C
5D
Exercise 4
6D
7A
8C
9A
10B
11A
12C
13B
14C
15D
16A
17A
18D
19B
20C
21D
22A
23B
24B
25D
EXERCISES 5
26 D
27C
28D
29B
30A
EXERCISES 6
31D
32C
33B
34C
35A
EXERCISE 7
36D
37A
38C
39B
40A

Exercise 3
1A
2C
3D
4C
5B
Exercise 4
6D
7A
8B
9A
10B
11A
12D
13B
14C
15D
16B
17A
18D
19A
20C
21D
22A
23B
24B
25B
EXERCISES 5
26 D
27C
28C
29B
30A
EXERCISES 6
31D
32C
33B
34D
35A
EXERCISE 7
36D
37B
38C
39B
40A

EXERCISE 1: put the verbs in bracket in the present perfect tense
1. I ( already/visit) have already visited our from teacher in the hospital
2. John ( already/read) has already read the letter from May
3. We ( not begin) have not begun to learn for the test year
4. Nancy ( be) has been to VN several times
5. The ( not start ) have not started the project yet
6. The Greens ( be) have been to many countries
7. We ( go) have gone to the village to so volunteer work several times
8. Our teacher ( already/ explain ) has already explained to us how to use the printer
9. My pen isn’t here anymore . Some one (already/take) have already taken it
10. Mai ( not/finish ) has not finished her home work yet
EXERCISE 2: put the verbs in brackets in the correct verb tense the present perfect or past simple
1. Tom ( call) called his boss yesterday
2. I ( meet) have met Robert at the supermarket this morning
3. We ( fly) have flied to Ha Noi several times , but last summer we ( go) went there by train
4. When ( your father / give up ) has your father given up smoking ?
5. My uncle ( move) moved to Dat Lat in 2005
6. I (be ) have been to Sa Pa twice sine 2000
7. We (spend) spent our summer vacation already
8. I ( watch) have watched the film Titanic already
9. The postman ( deliver) delivered the letter
10. I ( hear) heard the good news from May a few minutes ago
11. I ( have) have had this iPad for three years . My father ( give) gave it to me when i was in garden 6
12. My mother ( do) has done all the cleaning the apartment is really clean now
13. Some one ( turn ) have turned on the hi-fi. Do you know that song?
14. The match ( just start) has just started. Our team is playing very well
15. He (lose) has lost his credit card . He can’t find it anywhere
16. Prices( go) have gone up . Every thing is more expensive nowadays
17. (You/buy) Have you bought the laptop yet
18. Miss white ( work) worked in Ha Noi from 2011and2014
19. I can’t take any pictures because I ( not/buy) have not bought anew film yet
20. Did they spend their holiday in New Zealand last summer
EXERCISE 2: choose the word whose underline part pronounced differently from that of the others
1.C
2.A
3.C
4.D
5.D
EXERCISE 4: choose the word or phrase that best completes s each unfinished sentences below
6.C 12.A 18.D 24.B
7.B 13.B 19.A 25.A
8.A 14.A 20.C
9.C 15.A 21.A
10.B 16.A 22.A
11.A 17.A 23.C
EXERCISE 5: choose the underlined part that needs correcting
26.C
27.C
28.C
29.A
30.B
EXERCISE 6:choose the word (a,b,c or d) that best fits each of the blank spaces
31.D
32.D
33.D
34.B
35.C
EXERCISE 7: read the following passage and choose the best answer to each of the question
36.B
37.D
38.D
39.D
40.A

EXERCISE 1: put the verbs in bracket in the present perfect tense
1. I ( already/visit) have already visited our from teacher in the hospital
2. John ( already/read) has already read the letter from May
3. We ( not begin) have not begun to learn for the test year
4. Nancy ( be) has been to VN several times
5. The ( not start ) have not started the project yet
6. The Greens ( be) have been to many countries
7. We ( go) have gone to the village to so volunteer work several times
8. Our teacher ( already/ explain ) has already explained to us how to use the printer
9. My pen isn’t here anymore . Some one (already/take) have already taken it
10. Mai ( not/finish ) has not finished her home work yet
EXERCISE 2: put the verbs in brackets in the correct verb tense the present perfect or past simple
1. Tom ( call) called his boss yesterday
2. I ( meet) have met Robert at the supermarket this morning
3. We ( fly) have flied to Ha Noi several times , but last summer we ( go) went there by train
4. When ( your father / give up ) has your father given up smoking ?
5. My uncle ( move) moved to Dat Lat in 2005
6. I (be ) have been to Sa Pa twice sine 2000
7. We (spend) spent our summer vacation already
8. I ( watch) have watched the film Titanic already
9. The postman ( deliver) delivered the letter
10. I ( hear) heard the good news from May a few minutes ago
11. I ( have) have had this iPad for three years . My father ( give) gave it to me when i was in garden 6
12. My mother ( do) has done all the cleaning the apartment is really clean now
13. Some one ( turn ) have turned on the hi-fi. Do you know that song?
14. The match ( just start) has just started. Our team is playing very well
15. He (lose) has lost his credit card . He can’t find it anywhere
16. Prices( go) have gone up . Every thing is more expensive nowadays
17. (You/buy) Have you bought the laptop yet
18. Miss white ( work) worked in Ha Noi from 2011and2014
19. I can’t take any pictures because I ( not/buy) have not bought anew film yet
20. Did they spend their holiday in New Zealand last summer
EXERCISE 3
1 C
2 D
3 D
4A
5D
Exercise 4
6 C
7 D
8 A
9 B
10 A
11 A
12 A
13 C
14 A
15 B
16 A
17 A
18 D
19 A
20 A
21 A
22 A
23 B
24 B
25 A
EXERCISES 5
26 C
27 A
28 A
29 B
30 C
EXERCISES 6
31D
32 D
33 D
34 A
35A
EXERCISE 7
36 B
37 A
38 D
39 A
40A
The end

Exercise 1: Put the verbs in bracket in the present perfect tense.
1. I (already/visit) have already visited our from teacher in the hospital.
2. John (already/read) has already read the letter from May.
3. We (not begin) have not begun to learn for the test year.
4. Nancy (be) has been to Vietnam several times.
5. They (not start) have not started the project yet.
6. The Greens (be) have been to many countries.
7. We (go) have gone to the village to do volunteer work several times.
8. Our teacher (already/ explain) has already explained to us how to use the printer.
9. My pen isn’t here any more . Someone (already/take) have already taken it.
10. Mai (not/finish) has not finished her home work yet.


Exercise 2: Put the verbs in brackets in the correct verb tense the present perfect or past simple.
1. Tom (call) called his boss yesterday.
2. I ( meet) have met Robert at the supermarket this morning.
3. We (fly) have flown to Ha Noi several times , but last summer we (go) went there by train.
4. When (your father/give up) has your father given up smoking?
5. My uncle (move) moved to Dat Lat in 2005.
6. I (be ) have been to SaPa twice sine 2000.
7. We (spend) spent our summer vacation already.
8. I (watch) have watched the film Titanic already.
9. The postman ( deliver) delivered the letter.
10. I (hear) heard the good news from Mary a few minutes ago.
11. I (have) have had this iPad for three years. My father (give) gave it to me when I was in grade 6.
12. My mother (do) has done all the cleaning the apartment is really clean now.
13. Some one (turn) have turned on the hifi. Do you know that song?
14. The match (just start) has just started. Our team is playing very well.
15. He (lose) has lost his credit card. He can’t find it anywhere.
16. Prices(go) have gone up . Every thing is more expensive nowadays.
17. (You/buy) Have you bought the laptop yet .
18. Miss white (work) worked in Ha Noi from 2011 and 2014.
19. I can’t take any pictures because I (not/buy) have not bought a new film yet.
20. (They/spend) Did they spend their holiday in New Zealand last summer?


Exercise 3: Choose the word whose underline part pronounced differently from that of the others.
1. C
2. A
3. B
4. A
5. D

Exercise 4: Choose the word or phrase that best completes each unfinished sentences below.
6. C
7. B
8. A
9. C
10. B
11. A
12. A
13. C
14. A
15. A
16. A
17. A
18. D
19. A
20. C
21. A
22. A
23. C
24. B
25. A

Exercise 5: Choose the underlined part that needs correcting.
26.C
27.C
28.C
29.A
30.B

Exercise 6: Choose the word (a,b,c or d) that best fits each of the blank spaces.
31.D
32.D
33.D
34.B
35.C

Exercise 7: Read the following passage and choose the best answer to each of the question.
36.B
37.D
38.D
39.D
40.A

EXERCISE 1.Put the verbs in bracket in the present perfect tense
1. I ( already/visit) have already visited our from teacher in the hospital
2. John ( already/read) has already read the letter from May
3. We ( not begin) have not begun to learn for the test year
4. Nancy ( be) has been to VN several times
5. The ( not start ) have not started the project yet
6. The Greens ( be) have been to many countries
7. We ( go) have gone to the village to so volunteer work several times
8. Our teacher ( already/ explain ) has already explained to us how to use the printer
9. My pen isn’t here anymore . Some one (already/take) have already taken it
10. Mai ( not/finish ) has not finished her home work yet
EXERCISE 2.Put the verbs in brackets in the correct verb tense the present perfect or past simple
1. Tom ( call) called his boss yesterday
2. I ( meet) have met Robert at the supermarket this morning
3. We ( fly) have flied to Ha Noi several times , but last summer we ( go) went there by train
4. When ( your father / give up ) has your father given up smoking ?
5. My uncle ( move) moved to Dat Lat in 2005
6. I (be ) have been to Sa Pa twice sine 2000
7. We (spend) spent our summer vacation already
8. I ( watch) have watched the film Titanic already
9. The postman ( deliver) delivered the letter
10. I ( hear) heard the good news from May a few minutes ago
11. I ( have) have had this iPad for three years . My father ( give) gave it to me when i was in garden 6
12. My mother ( do) has done all the cleaning the apartment is really clean now
13. Some one ( turn ) have turned on the hi-fi. Do you know that song?
14. The match ( just start) has just started. Our team is playing very well
15. He (lose) has lost his credit card . He can’t find it anywhere
16. Prices( go) have gone up . Every thing is more expensive nowadays
17. (You/buy) Have you bought the laptop yet
18. Miss white ( work) worked in Ha Noi from 2011and2014
19. I can’t take any pictures because I ( not/buy) have not bought anew film yet
20. Did they spend their holiday in New Zealand last summer
EXERCISE 3.Choose the word whose underline part pronounced differently from that of the others
1.B
2.D
3.A
4.B
5.D
EXERCISE 4: choose the word or phrase that best completes s each unfinished sentences below
6.C
7.B
8.A
9.D
10.B
11.A
12.A
13.C
14.A
15.A
16.A
17.A
18.D
19.D
20.C
21.A
22.B
23.B
24.B
25.A
EXERCISE 5.Choose the underlined part that needs correcting
26.C
27.C
28.B
29.B
30.D
EXERCISE 6.Choose the word (a,b,c or d) that best fits each of the blank spaces
31.A
32.D
33.D
34.D
35.B
EXERCISE 7.Read the following passage and choose the best answer to each of the question
36.B
37.D
38.D
39.D
40.A

Exercise 1:Put the verbs in brackets in the present perfect tense.
1) I(already/visit) have already visited our form teacher in the hospital.
2) John (already/read) has already read the letter from Mary.
3) We (not begin) haven’t begun to learn for the test yet.
4) Nancy (be) has been to Vietnam several times.
5) They (not start) haven’t started the project yet.
6) The Greens (be) has been to many countries in the world so far.
7) We (go) have gone to that village to do volunteer work several times .
Our teacher (already/explain) has already explained to us how to use the printer .
9) My pen isn’t here anymore.someone (already/take) have already taken it.
10) Mai (not finish) hasn’t finished her homework yet.
Exercire 2: Put the verbs in brackets in the correct verb tense: the Present Perfect or past simple.
1.Tom (call) called his boss yesterday.
2.I (meet) have met Robert at the supermarket this morning.
3.We (fly) have flown to HaNoi several times, but last summer we(go) went there by train.
4.When (your father/give up) has your father given up smoking?
5.My uncle (move) moved to Da Lat in 2005
6.I(Be) have been to Sa Pa twice since 2000
7.We (spend) spended our summer vacation in Ha Long Bay last July.
8.i (watch) have watched the film Titanic already.
9.The postman (deliver) delivered the letter half an hour ago.
10.I(hear) heard the good news from Mary a few minutes ago.
11.I(have) have this iPad for three years.my father (give) gave it to me when I was in grade 6.
12.My mother (do) has done all the cleaning.the apartment is really clean now.
13.Someone (turn) have turned on the hi-fi. Do you know that song?
14.The match(just start) has just start.Our team is playing very well.
15.he(lose) lost his credit card. He can’t find it anywhere.
16.Prices(go) have gone up.Everything is more expensive nowadays.
17.(you/buy) you have bought the laptop yet
18.Miss White (work) worked in Ha Noi from 2011 and 2014.
19.I can’t take any pictures because I (not/Buy) haven’t bought a new film yet.
20.(they/spend) They spended their holiday in New Zealand last summer?
Exercise 3.Choose the word whose underline part is pronounced differently from that of the others.
1.A
2.C
3.B
4.C
5.B
Exercise 4 .Choose the word or phrase that best completes each unfinished sentence below.
6.C
7.B
8.A
9.B
10.A
11.A
12.A
13.C
14.A
15.A
16.A
17.A
18.D
19.B
20.A
21.A
22.B
23.A
24.B
25.A
Exercise 5.Choose the underlined part that needs correcting.
26.B
27.C
28.A
29.C
30.C
Exercise 6.Choose the work (a,b,c or d)that best fits each of the blank spaces.
31.D
32.D
33.C
34.B
35.A
Exercise 7. Read the following passage and choose the best answers to each of the question
36. B
37.D
38.D
39.B
40.A

Exercise 1. Put the verbs in brackets in the present perfect tense.
1. I have already visited our form teacher in the hospital.
2. John has already read the letter from Mary.
3. We haven't begun to learn for the test yet.
4. Nancy has been to Vietnam several times.
5. They haven't started the project yet.
6. The Greens have been to many countries in the would so far.
7. We have gone to that village to do volunteer work several times.
8. Our teacher has already explained to us how to use the printer.
9. My pen isn't here any more. Someone have already taken it.
10. Mai hasn't finished her homework yet.
Exercise 2. Put the verbs in the brackets in the correct verb tense: The present perfect or past simpe.
1. Tom called his boss yesterday.
2. I met Robert at the supermarket this morning.
3. We have flown to Ha Noi several times, but last summer we went there by train.
4. When has your father given up smoking?
5. My uncle moved to Da Lat in 2005.
6. I have been to Sa Pa twice since 2000.
7. We spent our summer vacation in Ha Long Bay last July.
8. I have watched the film Titanic already.
9. The postman delivered the letter half an hour ago.
10. I heard the good news from Mary a few minutes ago.
11. I have had this iPad for three years. My father given it to me when I was in grade 6.
12. My mother has done all the cleaning. The apartment is really clean now.
13. Someone have turned on the hi-fi. Do you know that song?
14.  The match has just started. Our team is playing very well.
15. He has lost his credit card. He can't find it anywhere.
16. Prices have gone up. Everything is more expensive nowadays.
17. Have you bought the laptop yet?
18. Miss White worked in Ha Noi from 2011 and 2014.
19. I can't take any pictures because I haven't bought a new film yet.
20. Did they spend their holiday in New Zealand last summer?
Exercise 3. Choose the word whose underlined part is pronounced differently from that of the others.
1. A
2. C
3. B
4. A
5. D
Exercise 4. Choose the word or phrase that best completes each unfinished sentences below.
6. C
7. B
8. A
9. D
10. A
11. C
12. A
13. A
14. A
15. A
16. A
17. A
18. D
19. B
20. C
21. A
22. B
23. B
24. C
25. A
Exercise 5: Choose the underlined part that needs correcting.
26. C (need to)
27. C ( didn't saw)
28. A (There were)
29. C
30. C
Exercise 6: Choose the word (a,b,c or d) that best fits each of the blank spaces.
31. D
32. D
33. C
34. B
35. C
Exercise 7: Read the following passage and choose the best answer to each of the question.
36. B
37. A
38. D
39. A
40. A

EXERCISE 1:
1/ Have already visited
2/ Has already read
3/ haven’t begun
4/ Has been
5/ haven’t started
6/ has been
7/ Have gone
8/ Have already explained
9/ Has already taken
10/ Hasn’t finished
EXERCISE 2:
1/ Called
2/ Met
3/ Flew / went
4/ Did your father give up
5/ Moved
6/ Have been
7/ Spent
8/ Have watched
9/ Delivered
10/ Hearted
11/ Have had
12/ Did
13/ Turned
14/ Has started just
15/ Lost
16/ Went
17/ Have you bought
18/ Worked
19/ Haven’t bought
20/ Did they spent
EXERCISE 3:
1/ A . access
2/ D . concern
3/ B . post
4/ A . bought
5/ D . wrong
EXERCISE 4:
6/ C
7/ B
8/ A
9/ B
10/ A
11/ C
12/ B
13/ D
14/ A
15/ B
16/ A
17/A
18/ D
19/ B
20/ C
21/ A
22/ B
23/ B
24/ C
25/ A
EXERCISE 5:
26/ C
27/ C
28/ A
29/ B
30/ C
EXERCISE 6:
31/ C
32/ D
33/ B
34/ A
35/ A
Exercise 7:
36. B
37. A
38. D
39. A
40. A