2. 职称英语
  3. The book is borrowed from the library, so you ______ your children put dots and

The book is borrowed from the library, so you ______ your children put dots and

游客2025-03-25  2
问题 The book is borrowed from the library, so you ______ your children put dots and lines here and there.
选项 A、should have left
B、ought not to have let
C、needn’t have let
D、mustn’t have let
答案 B
解析 should have done与ought to have done结构用法相同，表示应该做而没有做，否定形式为ought not to have done，表示不该发生的事却发生了，所以B选项是正确答案。needn’t have done表示不必做的事情却做了，不合题意。mustn’t have done表示对过去的事做出否定性的猜测。should have left意义正好相悖。
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