could have done和need have
人气：426 ℃ 时间：2020-04-03 11:43:05
解答
need have done 是表示需要做某事却没有做.could have done本能做某事却没有做(不含谴责意味）,拓展.should have done本能做某事却没有做(含谴责意味）eg;I should have passed the exam if I did not stay up.
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