Please be quiet!The other ( ) hear very!A.can't B.mustn't C.
Please be quiet!The other ( ) hear very!A.can't B.mustn't C.
Please be quiet!The other ( ) hear very!
be quiet,children.i can't _ your father A.hear B.sound C.lis
look at the girl ,is she nina?A must be B mustn't be C can b
you must clean the classroom,you?a.needn’t b.mustn’t c.can’t
Our teacher must be in his office,A mustn't he B can't he C
That must be a mistake,___ it?A mustn't B can't C isn't 选什么,
Bob must be at home,________?A.mustn't he B.can't he C.isn't
you ___ (A shouldn't B mustn't C needn't D can't)eat the sou
don't ___ in class,Please be quiet .A.talk B.speak C.say
Would you please be quiet?I couldn't hear what the professor
He must be fifty,________?A.mustn't he B.can't C.must he D.m