题目内容：

根据下面对话中的情境，在空白处各写一个句子，使对话完整正确。

A: Tomorrow is Saturday .____________ 1.______________________?

B: I’m going to climb the mountain.

A: Oh, that sounds great . ____________2.________________________?

B: I haven’t decided. I don’t know who is free tomorrow. _____3._______?

Yes, I’d like to. Let’s go together.___________ 4._________________?

What about 6 o’clock in the morning?

A:________ 5.____________. Let’s make it 7 o’clock.

B: OK. See you tomorrow.