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III: Mark the letter A, B, C, D on your answer sheet to indicate the correct answer to each of the following questions. Trả lời câu hỏi dưới đây:Something ____ happened or they would be here by now.

III:
Mark the letter A, B, C, D on your answer sheet to indicate the correct answer to each

Câu hỏi

Nhận biết

III:

Mark the letter A, B, C, D on your answer sheet to indicate the correct answer to each of the following questions.

Trả lời câu hỏi dưới đây:

Something ____ happened or they would be here by now.


A.
must 
B.
must be    
C.
must have
D.
must have been
Đáp án đúng: C

Lời giải của Luyện Tập 365

Đáp án là C.must have done: dùng để diễn tả hành động sự việc chắc chắn đã xảy ra trong quá khứ, thường là có cơ sở.

Dịch: Có thứ gì đó đã xảy ra hoặc họ sẽ đến đây ngay bây giờ.

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