can have gone和may have gone的区别这2个都表示对过去的事情表示猜测,请问用法有什么区别呢?例如,there is no light in the room,can they have gone out?there is no light in the room,may they have gone out?这两句话的用法

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can have gone和may have gone的区别这2个都表示对过去的事情表示猜测,请问用法有什么区别呢?例如,there is no light in the room,can they have gone out?there is no light in the room,may they have gone out?这两句话的用法
can have gone和may have gone的区别
这2个都表示对过去的事情表示猜测,请问用法有什么区别呢?
例如,there is no light in the room,can they have gone out?
there is no light in the room,may they have gone out?
这两句话的用法有错吗?

can have gone和may have gone的区别这2个都表示对过去的事情表示猜测,请问用法有什么区别呢?例如,there is no light in the room,can they have gone out?there is no light in the room,may they have gone out?这两句话的用法
我会用could,表推测的.can 应该也可以,但我不会用may
may / might have done 表示“过去可能做了某事”.may 比 might 表示的可能性在说话人看来稍大些.may/might not have done表示“过去可能没有做某事.”例如：
I can't find my keys.I may / might have left them at the school yesterday.我找不到我的钥匙了.我可能昨天把他们落在学校了.
can/could have done 表推测一般用在否定句和疑问句中,表示不相信或怀疑的态度.
Can/Could he have passed the exam?他可能通过了考试吗?
注：表示推测过去某动作发生的可能性时,就表示的可能性程度而言,must 最大,could 其次,may 更次之,might 最小.
(1)can,could后接完成式的用法：①在否定句或疑问句中表示对过去发生过的事情的“怀疑”或“不肯定”的态度,Could he have said so?②在肯定句中,可以表示过去可能做到而实际并没做到的事情,有“劝告”或“责备”的语气.如：---- When did you answer her letter?---- Only yesterday.---- It's too late.You could have answered it earlier,I am sure.
(2)may,might后接完成式的用法 ①表示对过去某事的推测,认为某一件事情在过去可能发生了.如果使用might,语气就比较婉转或更加不肯定,如：Mary might have learned some Chinese before.②可以表示过去本来可以做到而实际没有做到的事情,有“劝告”或“责备”的语气,如：You didn't do the work well that day.You might have done it better.
(3)must后接完成式的用法：表示对过去某事的推测,认为某事在过去一定做到了,如：Liu Dong isn’t in the classroom.He must have gone to the library.

第一种用法是对的，可以这样用。第二种用may的话，表示已经发生过的事，表示不正确

can have gone和may have gone的区别这2个都表示对过去的事情表示猜测,请问用法有什么区别呢?例如,there is no light in the room,can they have gone out?there is no light in the room,may they have gone out?这两句话的用法 Where are the Greens,may I ask?Well,they to England,They there for nearly a week now.Where are the Greens,may I ask?Well,they to England,They there for nearly a week now.A,have been,have been,B,have been,have gone.C,have gone.have been,D,have gone.ha 10.Lily isn’t here.She ______ have gone to the school library,or she ______ have gone to the meeting room,or she ______ have gone home.Who knows?选may,must,can,can't should 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 I can’t find Mr Wang anywhere in the office building.Where____he have gone?（b）A.may B.can C.must D.Should 求have gone 和 have been gone区别 have been gone和have gone的区别.RT、 Where _____?She _____ to school,for it's Sunday today!A.can she go,can't go B.may she go,may我选择的是A.为什么错了?Where _____?She _____ to school,for it's Sunday today!A.can she go,can't go B.may she go,may not goC.can she have gone,can't 1.___,this possible effect may put us in a dilemma.A.Having overlooked B.Overlooked C.To overlook D.Overlooking2.He ___ to shanghai,for I saw him a moment agoA.must have gone B.can't have gone C.mustn't have gone D.can't have been3.He felt guilty abo 英语语法C47.I have caught a bad cold for a week and I can't get rid of it.这里面的have为什么要改为had呢?8,He ______ climbing in the Alps next summer.A,can have gone B,would go C,may have gone D,may go以上选项求用排除法一一英语翻译may khung ha He have gone to the net bar,for I saw him in the classroom just now.A mustn’t B can’t C may not D might not have been和have gone的区别 have been 和have gone 的区别 can have ,will have ,may have,should have的差别 may we take the books outwish to recollect where I met her,______?A.would IB.may IC.may not ID.can I答案为什么是b,能具体说下原因吗you ___out yesterday without a coat.no wonder you caught coldAoughtn't have gone Bshouldn't have gone为英语翻译Friends are people that you .You don not live with your friends,but you do many things with them .You may have many friends.Your friends can be like family.They can help you do things.You may have some friends who look like you.You may ha should have gone 和 must have gone的区别,是高中的语法可是忘记了.The house is dark.; the Browns ______ to bed.A.may go B.should go C.should have gone D.must have gone为什么选D不选c?