题目内容

An Englishman who ____not speak Chinese is going to live in China.

A. must
B. could
C. can

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It ____ be hot in the summer.

A. can
B. couldn’t
C. can’t

–Who is the man over there? Is it Mr. Li?

A. No, it ______ be him. Mr. Li is much taller.
B. mustn’t
C. could not
D. can’t

--- Could I sit here?

A. -Yes, of course you _______.
B. can
C. could
D. must

It is lucky for him to _____ get the job.

A. be able to
B. could
C. can

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