should have done .would have done. must have done三者之间的意思和用法上有什么区别?

should have done是什么意思? Could have done would have done should have done should have done与should have been done的区别? should have done 和should not have done的区别 should ought to have done would have done,might have done,could have done,should have done分别表示什么意思? should have done ,shouldn't have done.could have done,couldn't have done should have done 可以换成 ought to have done嘛? would rather have done 与should have done 的区别 should have done和could have done的区别? 英语：should have done与could have done区别? should have done 和have done有什么区别 英语 would have done 和should have done 的用法 should have done与would have done有区别吗? should have done和 would have done是什么意思 should have done与would have done有区别吗? 1.Research findings show wo spend about two hours dreaming every night,no matter what we __D__ during the day.A.should have done B.would have done C.must have done D.may have done 2.A bicycle __A__ by electric power,which does good to the environment 英语翻译用上should have done这个词组