题目内容
They have collected more than 14,000 books since the library last month.
A. built B. was built
C. builds D. is built
B 【解析】句意:自从这个图书馆上个月被修建以来,他们已经收集了超过14,000本书。built修建,是build的过去式;was built一般过去时态的被动语态;builds第三人称单数形式;is built一般现在时态的被动语态。根据句意可知主语the library和动词build构成被动关系,应用被动语态,并且时间状语是last month上个月,是过去的时间,应用一般过去时态,故...
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