might be和 may have been的区别?还有是might do和 may have done

might be和 may have been的区别?还有是might do和 may have done might be 和 may be的区别 He may have been busy和He might be busy请问它们的区别?may have been 和might be的区别?请问? may have done sth 和might be 都是表示对过去的猜测 有什么区别?What has happened to Jim?I do not know He ___lostA. might get B.may have got I haven't received the letter.It()to a wrong address.A.may send B.may be sent C.might have sent D.might have been sent May/might + 动词原形,May/might be doing,May/might have done这三种结构分别在什么时候使用? may,might,maybe和may be的区别 threr may be和there might be的区别 may have done和may have done 的区别RTmay have done和might have done ---What ever happened to Tom?---He lost.A.must be B.should have got C.may have got D.might be(为什么是表可能?) It___he is late for school .A.may that B.might that C.may be that D.might be what –What do you think the noise was?--It ______–What do you think the noise was?--It ___________ a cat.A.may be B.might be C.could have been D.might have been -what do you think the noise was?-It _____a cat.A may be B might be C could have been D might have been可为什么答案写的是D呢？ 选词填空：may might may have might have may have had选词填空：may might may have might have may have had can not May I have a cup of tea?Yes,you_____.A.might B.will C.may might be与may be的区别 may be 可以改成might be 吗如题 may,may be,might都有什么区别,和用法上有什么区别.