[题目]The new teaching building by the end of last month.A. has been designed B. had been designedC. was designed D. would be designed 题目和参考答案——青夏教育精英家教网—

题目内容

【题目】The new teaching building ______ by the end of last month.

A. has been designed B. had been designed

C. was designed D. would be designed

【答案】B

【解析】

试题分析：考查过去完成时态。根据句意：新的教学楼在上个月末就已经设计好了。在句中by引导的时间状语中，时间表达的是过去的时间，所以主句的谓语动词要用过去完成时来表达。类似如果by引导的时间状语中，时间表达的是将来的时间，主句的谓语动词要用现在完成时来表达；故选B。

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