John _____ this task yesterday morning, but I did it for him. He owes me a thank-you.
A. must have completed
B. should have completed
C. could have completed
D. may have completed
Giải bởi Vietjack
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
Smoking is extremely detrimental to health, _____ many people continue to smoke anyway.
Many years ago, black children were _____________ to discrimination in many schools.
The authorities recommend that the meeting _____________ next Monday.
As a small boy, he used to _______ alone in the house for an hour or two.
Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.
We decided to spend ______ summer in ______ seaside town.
Her husband is very kind. He always cares _____ her and never puts all of the housework her.
One member of the project group_______the boss and was fired immediately.
The archaeological excavation _____ to the discovery of the ancient city lasted several years.
