The new suspension bridge by the end of last month. [ ] A.has been designed B.ha
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The new suspension bridge ________ by the end of last month.
[]A.has been designed
B.had been designed
C.was designed
D.would be designed
试题答案
答案:B
解析:在含有by引导的时间状语的句子里,谓语动词要用过去完成时:By the end of last year we had learned 2,000 new words.到去年年底,我们已经学习了2,000个生词.本题意为“悬挂桥已经于上月月底设计完成.” |