选词填空。

rest;     doctor;    cold;    hospital;    sick

David: Hi, Kevin. What's wrong with you? Are you OK?

Kevin: To tell you the truth, I feel . I've got a headache.

David: That's too bad. Do you see the ?

Kevin: I'm going to the  right now.

David: Well, I think you must have a bad .You must have a good  and will feel much better.

Kevin: I think so. Thank you.