1._____I go out to play now,Mum?
1._____I go out to play now,Mum?
No you ——.You shuold do your homewerk first.
A.Must;must`t B.Must;wouldn`t C.May;needn`t D.May;had better not
2.____you like to have a walk with us this evening?
A.Did B.Would C.Shuold D.Can
3.You____be caerful when you cross here ---the traffic lighs aren`t working.
A.could B.might C.ought to D.may
4.We were all waiting for you ;you___for the seaside by yourself without leaving a message.
A.mustn`t ;leave B.needn`t leave C.shouldn`t have left D.couldn`t have left
5.It ___be she that told him about it;it___be you ,because only you and I konw it.
A.mustn`t ;must B.couldn`t;must C.shouldn`t have mignt D.couldn`t;might
1.D（妈妈,我现在可以出去玩吗?不行,你最好不去.你应该先做作业.）
2.B（这里考察would you like句型）你愿意今晚和我们一起散步吗?
3.C（ought to=should,应该）当你过马路时应该更小心——红绿灯坏了.
4.C（我们都在等你呢；你不应该没留字条就一个人去海边了.should have done：原本应该做而没做）
5.B(不可能是她告诉他的,一定是你,因为这件事只有你和我知道.couldn't表示推断“不可能”,must用于肯定句表示“肯定”.）