补全对话（5分）

根据下面的对话情景，在每个空白处填上一个适当的句子，使对话意义连贯，完整。

(Michael and Kangkang meet at the school gate.)

A: Hello, Kangkang.

B: Hi, Michael.

A: I called you just before I left home ,but you were not in. 1.__________________________

B: Oh, sorry. I’ve been to the library.

A: What did you go there for?

B: 2__________________________________________________________

A: Well, 3 _____________________________________________________

B: It’s about 1.3 billion, one fifth of the world’s.

A: Has the government done anything to control the huge population yet?

B: Yes. 4_________________________________________________and it has worked well in controlling the population growth for many years.

A: Really? However, the population problem is still serious in China, isn’t it?

B: Yes, it is. Oh! 5 _________________________________________Let’s go to the classroom.

Hurry. Let’s go.

A.  A. What’s the population of China? 

B.  B. Where have you been?

C.  C.What’s wrong?

D.  D. The government has carries out the one-child policy.

E.  E. There goes the bell.

F.  F. I went there to look up some information about China’s population.

G.  G.I borrowed some story books.