Must be persever.Can't give up.这句话对吗?

Must be persever.Can't give up.这句话对吗? can be.must be区别may be Can be 和must be的区别 must be,can be,may be怎么变反义疑问句? can be ,must be,cannot be,must not be 的区别 can't be 与 must be的区别 What can't be cured must be endured 合并句子all can be done.all must be done 存在can be/must be ,can’t be 而没有mustn't be can be 我知道can't be 一定不是 是must be 一定是的否定形式 be,must be,can't have been,must have been吗 Who ------it be?It must be Mr.Wang A may B must C might D can There must be someone around you______ _______ you can learn. may be able to must can的区别是什么 there must be something you can do 中文意思是什么 there must something can be done有几种理解意思? I must become the best I can be的意思 My mother is ill.She_____to hospital at once.A.must be sent B.must sendC.can be sentD.can send