can’t/ couldn’t + have + V_ed/pp: không thể nào đã xảy ra trong quá khứ
>< must + have + V_ed/pp: ắt hẳn đã xảy ra
needn’t have + V_ed/pp: đáng lẽ không phải làm nhưng đã làm
Tạm dịch: Anh ta đã không tưới cây. Nếu anh ta đã tưới thì chúng sẽ không thể nào chết được.
Chọn B
Mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the following questions.
Ros_____________the flowers. If she had, they wouldn’t have died
A. may not have watered
B. shouldn’t have watered
C. can’t have watered
D. might not have watered
Mark the letter A, B, C, or D to indicate the correct answer to each of the following sentences.
He _______ the plants. If he had, they wouldn't have died.
A. can't have watered
B. shouldn't water
C. couldn't water
D. needn't have watered
Mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the following questions.
They have plenty of time, so they needn’t _________ .
A. be hurry
B. to hurry
C. hurry
D. to be hurried
Mark the letter A, B, C or D on your answer sheet to indicate the sentence that is closest in meaning to each of the following questions
If he had known the road was icy, he wouldn’t have been driving very fast
A. He was driving very fast because he didn’t know the road was icy
B. He has been driving very fast because he doesn’t know the road was icy
C. If only he knew the road was icy, he wouldn’t be driving very fast
D. He had been driving very fast because he didn’t know the road was icy
* Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.
He admits that quite__________very experienced climbers have died on the West Ridge route.
A. a little
B. a few
C. some
D. few
Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.
If I _______ to him, I wouldn’t have lost my way.
A. would listen
B. listened
C. had listened
D. would listened
Mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the following questions.
If a boss wants to have a well-qualified staff, he should have to pay his employees______.
A. appropriate
B. appropriately
C. appropriation
D. appropriating
Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.
If it________their encouragement, he could have given it up.
A. hadn’t been for
B. wouldn’t have been for
C. had been for
D. hadn’t been
Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.
He had to act immediately;_______, it would have been too late.
A. however
B. consequently
C. otherwise
D. nevertheless
