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24.When I arrived I saw the place was already ______ by two strangers in uniforms.

A.occupied        B.conquered       C.possessed       D.owned

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23.It is difficult to ______ a conversation with someone who only says “yes” and “no”.

A.keep on        B.keep down       C.keep up         D.keep in  

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22.Polar explorers have to be extremely _______ to bear the climate and other hardships.

A.difficult        B.rough          C.tough          D.brave

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第一节:多项选择(共10小题;每小题1分,满分10分)

从A、B、C、D四个选项中,选出可以填入空白处的最佳选项。

21.The new chairman was quite familiar with the ________ for conducting a meeting.

A.procedure       B.problem         C.question         D.people 

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同步练习册答案