将下列句子排列成一段通顺的对话。

A. Not so good.

B. Hello, this is Wang Bing.

C. I have a headache.

D. I' m sorry to hear that. What's the matter, Wang Bing?

E. How are you, Wang Bing?

F. Hello, this is Liu Tao speaking. May I speak to Wang Bing?

G. Take some pills and have a good rest.

⑴⑵⑶⑷     A  ⑸⑹⑺