选出合适的句子完成下列对话A.I forgot that.B.Of course,you do.C.Go upstair

选出合适的句子完成下列对话
A.I forgot that.B.Of course,you do.C.Go upstairs and go to bed
D.I won't E.That's a good idea.F.Do l have to?
A:Mary,it's your bed time.（ ）
B:Oh,Mum!（ ）It's Friday evening and it's still early.
A:Yes.Toworrow we have to get up early to catch the train to your grandpa's.
B:( )OK.I'll go to bed right now.I like to go fishing with Grandpa.Oh,Mum,do l have to brush my teeth before l go to sleep?
A:( )And don't forget to open the bedroom window.
B:( )Good night,Mum!
A:Good night.