A.

⑴Do you live in Beijing?   

⑵May I go home now?   

⑶May I have your number?   

⑷How many yellow balls are there?   

⑸Where do you come from?   

B.

A. I come from He Nan.

B. There are forty-five.

C. No, I don't.

D. Certainly. It's 6-2-0-1-6-2-5-4.

E. Certainly.