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35.All passengers _______, please fasten your seat belts and remain seated _______ the plane is landing.

     A.on board; until                    B.abroad; since                

   C.on the board; before                D.aboard; when

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34.He ________ busy then; otherwise, I believe, he would have given you a hand.

     A.had been       B.were          C.must be        D.was

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33.It is not like Mr.Smith, who is a gentleman, _____his wife so rudely.

    A.to treat        B.treating       C.should treat   D.treated

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32.As the saying _______, _______ who laughs last laughs best.

    A.says; who      B.goes; he        C.goes; who      D.puts; one

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