Grammar Quiz
[ Grammar ]

Chọn cấu trúc đúng khi người nói:

RẤT chắc chắn về một việc trong quá khứ hoặc không có thật

A. must / can’t / couldn’t + have PII

B. must / can’t / couldn’t + V

C. should/ ought to + have PII

Select your answer:
         


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