who ------- this bridge years ago?-------MaoYisheng did A.bu

问题描述:

who _______ this bridge years ago?-------MaoYisheng did A.builds B.built c.build D.building
1个回答 分类:综合 2014-09-22

问题解答:

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句中years ago ,表示若干年前,所以要用过去时,所以选B
 
 
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