8．
根据情景，在空格处填入适当的句子，补全对话。
(Sam is at the doctor's room.)
Sam: Good morning, doctor.
Doctor: Good morning, Sam.
Sam: I am feeling terrible, and I have a headache.
Doctor:
Sam: Two days.
Doctor:
Sam: Yes, my temperature was normal(正常的) and I didn't have a fever. My throat didn't have any pain, either.
Doctor: I think you worked too long.
Sam:
Doctor: No, you needn't take any medicine. It's nothing serious.
Sam:
Doctor: You just need to have a good rest.
Sam: Thank you very much, doctor.
