24.--- I’m sure Tom will pass the final examination. --- I think so. He for it for months. A. had been preparing B. was preparing C. is preparing D. has been preparing 查看更多

 

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 --- I’m sure Tom will pass the final examination.

     --- I think so. He                for it for months.

    A. had been preparing    B. was preparing    C. is preparing   D. has been preparing

 

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--- I’m sure Tom will pass the final examination.

--- I think so.He            for it for months.

A.had been preparing                                   B.was preparing

C.is preparing                                              D.has been preparing

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