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        1. Today computers ____________ in both cities and town.
          A. are using           B. are used             C. were used
          B
          本題考查的是時態(tài)被動,根據(jù)today這個時間狀語,可知為一般現(xiàn)在時的被動語態(tài),am/is/are+being done,又因為主語為復數(shù)形式,be動詞是are,句意:如今在城市和鄉(xiāng)村電腦正在被使用。故選B
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