must have done 和 must do 有什么区别!哪一个是表示对过去的猜测呢?有人说must后面接动词原形是表示对现在的推测!那按照这个说法must do是表示对现在的推测!
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musthavedone和mustdo有什么区别!哪一个是表示对过去的猜测呢?有人说must后面接动词原形是表示对现在的推测!那按照这个说法mustdo是表示对现在的推测!musthavedone和m
must have done 和 must do 有什么区别!哪一个是表示对过去的猜测呢?有人说must后面接动词原形是表示对现在的推测!那按照这个说法must do是表示对现在的推测!
must have done 和 must do 有什么区别!哪一个是表示对过去的猜测呢?
有人说must后面接动词原形是表示对现在的推测!那按照这个说法must do是表示对现在的推测!
must have done 和 must do 有什么区别!哪一个是表示对过去的猜测呢?有人说must后面接动词原形是表示对现在的推测!那按照这个说法must do是表示对现在的推测!
must have done 表示对过去的猜测,must do 必须做某事
must have done 是对过去的推测,例如:I could not find my pen,some must have stolen it,我找不到我的钢笔,一定有人偷走了它。
must do 并不一定是表示对现在推测,表示强调,肯定。
you must finish your homework today. 今天你必须做完家庭作业。
没有这种说法.must do是必须做的意思
must have done是表示对过去的猜测
楼上不懂不要乱讲
must have done是虚拟语气,对过去的虚拟
must be done和 must have done区别
must have done和have done有什么区别
must have been done must have done
must have done和must be的区别?权威
must have done 和 should have done 的表示推测区别?must have done 和 should have done 都表示推测时,区别是什么?
can't have been和can' have done有什么区别或者must have been和must hane done;may have been和may have done
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?
could/should/must/.加have done和have been done区别
could have done sth 和must have done sth 的区别是什么
that must have done the
must be must have done 区别
must have been done/must be done求解两者异同
must have done 和must have domust have done是对过去的肯定猜测must do 是对现在的肯定猜测吗?一定是 “肯定 ”
have done 和gave been done的用法last night it must have been rained为什么错 雨是被下的,所以我觉得应该用have been done.
must have been与must have done的区别?
Thanks.You ______ it.I could manage it myself A.needn’t doB.needn’t have done C.mus...Thanks.You ______ it.I could manage it myself A.needn’t doB.needn’t have done C.mustn’t do D.shouldn’t have done中B和D有什么区别?Catherine,I have
must have done 和must have been 的区别都是对过去的猜测,二者的区别是什么?
must have done 的反义疑问句怎么说