The old engineer talked of the difficulty they ___ the tower
The old engineer talked of the difficulty they ___ the tower
A. builtB had building C had builtD build
选B 为什么啊?怎么解释?
A. builtB had building C had builtD build
选B 为什么啊?怎么解释?
英语人气：555 ℃时间：2019-10-26 20:53:33
优质解答
talked表示谈论已经是过去时了,而建造塔则是在谈论之前,所以用过去完成时,表示过去的过去
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