M: What’s the matter with you
W: I’m not feeling well, doctor. I have a fever.
M: I’ll take your temperature first. How long have you been like this
W: It began yesterday.
M: Do you feel thirsty
W: Yes.
M: Do you sleep well
W: No, last night I could hardly sleep.
M: Well, it’s probably the flu. Take this to the drugstore.
W: Yes, doctor.
M: Take the medicine and come back in three days.

What did the doctor do first（）

A. Gave the patient some medicine.
B. Took the patient’s temperature.
C. Let the patient go home.