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20．Could you do me a favour？It seems that my strength has ．（　�。�

A．

used up

B．

run out

C．

been given out

D．

been run out

分析你能幫我一個忙嗎？好像我的體力已經用完了．

解答答案是B．本題考查動詞短語辨析．use up表示"用完；耗盡"，及物的短語動詞，本題中需要用被動結構，所以A錯誤；run out表示"用完"不及物，不用被動語態，故D錯誤；（sth．）run out （某物）被用完；（sth．） give out表示"被用完，耗盡"，不用被動，故排除D答案選B．

點評本題考查動詞短語辨析，考生在平時的學習中應注意積累相應的詞匯和搭配，并牢記其意思．在做題時，將詞義和題干相結合，從語法、句子結構尤其是句意上去判斷，句意通順，符合邏輯，即正確答案．

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