Đáp án B

Cấu trúc Modal verb + have + PP: chỉ suy đoán trong quá khứ
- Must have done: chắc chắn đã xảy ra (gần 100% chắc chắn)
- Should have done: đáng lẽ đã nên xảy ra (nhưng sự thật là không xảy ra
- Could have done: co thể xảy ra (chỉ khả năng của con người, khoảng 80% chắc chắn)
- May have done: có thể xảy ra (chỉ sự việc, khoảng 80% chắc chắn)
Tạm dịch: John đáng lý nên làm xong bài vào sáng qua nhưng tôi đã làm cho anh ấy. Anh ấy nợ tôi một lời cảm ơn

Đáp án : D

Should have + past participle = đáng lẽ nên làm gì trong quá khứ, mà đã không làm

Đáp án C

Đáp án B

Cấu trúc Modal verb + have + PP: chỉ suy đoán trong quá khứ
- Must have done: chắc chắn đã xảy ra (gần 100% chắc chắn)
- Should have done: đáng lẽ đã nên xảy ra (nhưng sự thật là không xảy ra
- Could have done: co thể xảy ra (chỉ khả năng của con người, khoảng 80% chắc chắn)
- May have done: có thể xảy ra (chỉ sự việc, khoảng 80% chắc chắn)
Tạm dịch: John đáng lý nên làm xong bài vào sáng qua nhưng tôi đã làm cho anh ấy. Anh ấy nợ tôi một lời cảm ơn

Đáp án C

Kiến thức: Modal verb

Giải thích:

must have done sth: chắc hẳn đã làm gì

may have done sth: có thể đã làm gì (chỉ khả năng xảy ra)

should have done sth: nên đã làm gì (nhưng đã không làm)

could have done sth: có thể đã làm gì (chỉ năng lực khả năng)

Tạm dịch: John lẽ ra phải hoàn thành bài tập này sáng hôm qua, nhưng tôi đã làm điều đó cho anh ta. Anh ta nợ tôi một lời cảm ơn.

Đáp án C.

Choose the appropriate options to complete the sentences.

1. Most of the patient visits ---- to physician assistants in the recent years all around the world.

have been made
was made
will have been made
have made
make

2. These differences between two photographs ---- with the help of Photoshop.

should remove
must have removed
have to remove
could have been removed
were able to remove

3. No clinical studies ---- in this child disease research so far.

had completed
will be completed
have completed
had to complete
have been completed

4. The government ---- that the tasks ---- with great success.

is confirming / maintained
confirms / have been maintained
was confirmed / have maintained
will confirm / had been maintained
confirmed / are maintaining

5. With this comprehensive international report, the country's position in the regional and global arena ---- with measurable criteria.

is to identify
identifies
will be identified
identified
is going to identify

6. The critics ---- that the review ---- as a book in English and in many other languages.

are said / could be published
say / can be published
will say / had been published
said / may be published
have said / should publish

7. New legislation ---- in congress but it ---- by many.

was introduced / wasn't accepted
introduced / didn't accept
will be introduced / isn't accepted
introduced / hadn't been accepted
is introduced / won't accept

8. If you would like to know what ---- in the project so far, you ---- the full report at our website.

has been completed / may be visited
completed / will be found
will be completed / should be found
was completed / had been found
has been completed / can find

9. These clothes ---- for daily use so you ---- them wherever you want.

design / should be worn
will be designed / must wear
are designed / can wear
were designed / could be worn
designed / might be worn

10. A more developed model of this car ---- in the showroom soon.

is going to show
will be shown
was shown
has been shown
had shown

A

6. By the end of next month, we _______ our English course.

a. have completed b. will be completed

c. will have completed d. completed

7. If you had worked harder, you _______.

a. will not be sacked b. are not sacked

c. will not have been sacked d. would not have been sacked

8. It was _______ we could not go out.

a. such cold that b. so cold that c. very so cold d. too cold that

9. Nobody can prevent us from _______ good things.

a. do b. doing c. did d. done

10. Mr. Pike _______ English at our school for 20 years before he retired last year.

a. is teaching b. was teaching c. has been teaching d. had been teaching

11. You should be responsible _______ what you have done.

a. of b. for c. with d. on

12. No longer _______ clean the floor. I have just bought a vacuum cleaner.

a. do I have to b. I do have to c. I have to d. have I to do

13. People do exercise _______.

a. keeping fit b. making fit c. to keep fit d. to make them fix

14. I never forget _______ I went to school.

a. the time first which b. what the first time c. that the time d. the first time when

15. Mary enjoys _______ crossword puzzles when she has free time.

a. making b. doing c. taking d. getting

III.

16. If you want to get ____achievement___ in life, you should work harder. (achieve)

17. The roads in our town are being ____widened___. (wide)

18. Thank you for your clear ____explanation___. I can understand the lesson thoroughly. (explain)

19. The boring film made Tom fall ____asleep___. (sleep)

20. ____unluckily___ the boy got lost on the way home. (Luck)

21. The ____noise___ of the traffic prevented him from sleeping last night. (noisy)

22, The ____beauty___ of nature is at risk. (beautify)

23. Both the US and Russia continue their ___exploration____ of the moon. (explore)

24. Vietnam is an ____agricultural___ country. (agriculture)

25. ____advertising___ is one of the biggest businesses in the world. (Advertise)