补全对话，将所选的正确答案的序号写在横线上。
A: I was late for school today.
B: Why? What happened?
A: I took the bus.          But nobody was late except me.
Maybe I should go to school by taxi.
B: It’s the most comfortable way. But it’s also the most expensive. And taxies are very slow in heavy traffic too.
A:     .
B: That's a good choice, but it’s a bit dangerous. There’s so much traffic.
A:        Don’t worry. I’II be careful.
B:How does Tony go to school?
A: He lives the farthest from school, so he takes the underground.
B: And what about Lingling?
A:    
B: How about Daming?
A:He goes by bus too, the same as me. But it`s so crowded！And the traffic is heavy.
B: All right.     .