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()26.—DoyouthinkJackwillcatchupwithus?—Ibelieveso.hedoesn’tworkhard.A.IfB.UnlessC.Or

题目详情

( ) 26. — Do you think Jack will catch up with us?

        —I believe so.  ____ he doesn’t work hard.

   A. If   B. Unless

   C. Or

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答案和解析
26. B