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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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