从方框中选择恰当的选项，补全对话。(有两项多余）A: Mary, its your bed time. 1B: Oh, Mum! 2Its Friday evening and

从方框中选择恰当的选项，补全对话。(有两项多余）
A: Mary, it's your bed time. 1
B: Oh, Mum! 2 It's Friday evening and it's still early.
A: Yes. Tomorrow we have to get up early to catch the train to your grandpa's.
B: 4 OK, I'll go to bed right now. 3 Oh, Mum, do I have to brush my
teeth before I go to sleep?
A: 5 And don't forget to close the bedroom window.
B: I won't. Good night, Mum!
A: Good night!

解析：从方框中选择恰当的选项，补全对话，注意上下文意思连贯。

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