MODULE 10 - Đại từ nhân xưng, Đại từ sở hữu và Đại từ phản thân

Margaret promised to meet us at the entrance to the theater tomorrow night. She ______ for us when we get there. A. mustn’t be waiting B. could not be waiting C. ought to be waiting D. mi

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Margaret promised to meet us at the entrance to the theater tomorrow night. She ______ for us when we get there.

mustn’t be waiting

could not be waiting

ought to be waiting

might have been waiting

Giải thích

Chọn đáp án C