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Since they aren't answering the phone, they _______ their house.

Since they aren't answering the phone, they _______ their house.

Câu hỏi

Nhận biết

Since they aren't answering the phone, they _______ their house.


A.
need have left      
B.
can't have left  
C.
 must have left 
D.
should have left 
Đáp án đúng: C

Lời giải của Luyện Tập 365

Form: "Must have done" = diễn tả một sự việc cần thiết phải làm trong quá khứ nhưng đã không làm được 

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