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 ._____________ _____________________?
B: I’m going to climb the mountain.
A: Oh, that sounds great . ______________________________________?
B: I haven’t decided. I don’t know who is free tomorrow. ____________?
Yes, I’d like to. Let’s go together.____________ _______________?
What about 6 o’clock in the morning?
A:_______ ___________. Let’s make it 7 o’clock.
B: OK. See you tomorrow.