用适当的词或句子补全对话。

Doctor: Hello, Larry.

Larry: I feel terrible. I've got a sore throat and a headache.

Doctor: OK. Have you taken any medicine?

Larry:  I've had nothing till now.

Doctor: You haven't had a fever. Well, don't worry! I don't think you've got the flu(流感). I think it's just a cold.

Larry: OK.

Doctor: You should drink lots of water and take some vitamin C.

Larry: All right. Is there  I can do?

Doctor: Well, you can go to bed early.

Larry: Should I stay off school for a few days? Should I stay in bed?

Doctor: No, you needn't. It's nothing serious, so  as usual.

Larry: Oh, dear! I have a maths exam tomorrow.