例子：he may go to the baseball game he might go to the baseball gamehe worked all day .he_________________ tried.maybe she is at work.she_______________ at work.he definitely know how to fix my bike.he_________________ how to fix it.they are not sure if they will come.they_________________to class tomorrow.they know my teacher for sure.they_____________my teacher.为什么

he worked all day .he________might be_________ tried.(他可能累了，be是作为动词替代is)
maybe she is at work.she_______might be/may be________ at work.(be是作为动词替代is)
he definitely know how to fix my bike.he_______must know__________ how to fix it.(definite=must,一定)
they are not sure if they will come.they________might come_________to class tomorrow.(may/might 后面跟动词原型)
they know my teacher for sure.they_______definitely know______my teacher.(for sure=definitely,肯定）
may 和 might 没有太大区别，might表示语气更不确定一些
might 同时也是may的过去时，所以也要注意时态

1.might be
2.might
3.certainly
4.Might go to
5.knew

might be
might be
may know
might come
may know
may比might更确定