补全对话 （10 分）
A：Good morning. What’s the matter?
B：______________________
A：Do you have a headache?
B：_____________
A：Open your mouth and say “Ah”.
B：Ah.
A：__________
B I have been like this for two days.
A：Oh, I see. You had a bad cold.
B：Is it serious?
A：No, _______ But you really need a good rest and take this medicine.
B：_______________________
A：Three times a day.
B：OK. Thank you.