Câu hỏi

I’m sure he did this because I saw him standing there.

A. He must have done this because I saw him standing there.

B. He can have done this because I saw him standing there.

C. He need have done this because I saw him standing there.

D. He may have done this because I saw him standing there.

Đáp án
A. He must have done this because I saw him standing there.

Câu hỏi thuộc Bài tập:

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