阅读下面对话，根据上下文补全对话内容。

A: You don't look well ?

B: I have a sore throat.

A: ?

B: Yes. My temperature seems all right.

A: ?

B:I have been like this for three days.

A: Open your mouth and say"Ah"

B:Ah!

A: You have caught a cold.

B: ?

A:You should take this medicine three times a day.Then you'll be OK

B: Thank you very much.

A: .