根据语境，用恰当的语言完成对话(A and B are talking about their summer vacation plans)
A: Summer vacation is coming, 1. ______________________________ ?
B: I have no idea .Do you have any good ideas?
A: Yes. We are so tired recently. I want to relax myself. So I want to go on a trip.
B: Sounds great! 2. _______________________________ ?
A: I'd like to go somewhere interesting and exciting.
B: There is a new zoo in our city. I’d like to go there to see animals3___________________________?
A: No, I haven't. 4. __________________________?
B: I haven’t been there either. But my cousin went there last week. He told me people could watch the animals there in a more natural environment..
A: Really? That sounds interesting. Let's go to the zoo together.
B: OK. We can go there by bus tomorrow.
A: 5______________________________? It's not too far from here. And riding a bike is a kind of good exercise.
B: OK. I can't wait.
NH4+ +OH-的平衡，如果使平衡向逆反应方向移动，同时使c(OH-）增大，应加入