【mum1】...Mum?——Certainly.Butyoubebackby11o'clo...

1.( )——Can you go swimming with us this afternoon?——Sorry,I can’t.Itake care of my little sister at home because my mother is ill.A.can B.may C.would D.have to2.——May I go to cinema,Mum?——Certainly.But yoube back by 11o'clock.A.can B.may C.must D.need3.It's still early.You.A.mustn't hurry B.wouldn't hurry C.may not hurry D.don't have to hurry4.——May I stop here?——No,you.A.mustn't B.might not C.needn't D.won't5.A puterthink for itself,it must be told what to do.A.can't B.couldn't C.may not D.might not 英语