补全对话, 选择正确答案的编号填在横线上

A: Hi, Amy! _____________?                   B: It’s Wednesday.       
A: Oh,let’s go to the zoo this weekend.     B: Good idea!            ? 
A: Let’s see monkeys. They are very clever.  B: OK!            ? 
A:We can go by bike.               
B: But I have no bike. Let’s go by bus, OK?
A: OK. _________________?                    B: What about eight thirty?
A: _____________