21.--Look, Mr. King is swimming in the pool.--It be Mr. King.He has gone to Kunming on vacation.A.can B.can’t C.must D.mustn’t 查看更多

 

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--Look, Mr. King is swimming in the pool.

--It       be Mr. King.He has gone to Kunming on vacation.

A.can                      B.can’t                   C.must                      D.mustn’t

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-Look, Mr.King is swimming in the pool.

-It ________ be Mr.King.He has gone to Kunming on vacation.

[  ]

A.can

B.can't

C.must

D.mustn't

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