问题
选择题
Today computers ____________ in both cities and town.
A. are using B. are used C. were used
答案
答案：B
本题考查的是时态被动，根据today这个时间状语，可知为一般现在时的被动语态，am/is/are+being done,又因为主语为复数形式，be动词是are，句意：如今在城市和乡村电脑正在被使用。故选B
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