The waiting time (short) ______ dramatically from eight weeks to just one week s

游客2024-07-24  9

问题 The waiting time (short) ______ dramatically from eight weeks to just one week since the new rule was set.

选项

答案 has been shortened

解析 从句由since引导,故主句应为现在完成时,并且需要采用被动语态。首先将short变成它的动词形式shorten,再改为现在完成时的被动语态,所以正确答案为has been shortened。
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