题目内容

The stones are so heavy. How _____ they _____ to the top of the building without modern machines?
A．do; liftB．did; liftC．were; liftedD．were; lift
C

试题分析：句意：那些石头那么重。没有现代的机器他们怎么被举到那个建筑的顶部的？被动语态表示主语是动作的承受者，即行为动作的对象。例如：English is spoken by many people.主语English是动词speak的承受者。被动语态由“助动词be＋及物动词的过去分词”构成。一般过去式的被动语态构成was／were＋taught，lift的过去分词为 lifted，肯定句变疑问句，如果肯定句有be把be动词提前。根据语境故选C.
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