Today, computers are really helpful. The...

Today, computers are really helpful. They ____ everywhere.

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

B 【解析】试题分析：根据语境可知此题考查的是一般现在时的被动语态的基本构成和用法。整个文句的含义是现在电脑非常有用，他们被应用到各个领域，主语是they，电脑，是动作的承受者，并且是习惯性的动作，故用一般现在时的被动语态。主语是复数故选B。考点：一般现在时的被动语态。

考点分析：

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