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【題目】 Today, computers are really helpful. They ______ everywhere.

A. use B. are used C. usedD. were used

【答案】B

【解析】

試題分析:根據(jù)語境可知此題考查的是一般現(xiàn)在時的被動語態(tài)的基本構成和用法。整個文句的含義是現(xiàn)在電腦非常有用,他們被應用到各個領域,主語是they,電腦,是動作的承受者,并且是習慣性的動作,故用一般現(xiàn)在時的被動語態(tài)。主語是復數(shù)故選B。

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