补全对话：A：Good morning!doctor.B：Good morning young man!what’s the matter?
A：I’m not feeling well.I have a cough and I can’t sleep well at night.
B：I’m sorry to hear that.___________________?
A：For two days.
B：Oh,don’t worry.Let me check you over.__________________________?
A:Nothing.I didn’t want to eat anything the whole day.
B：Take the medicine.Three times a day and two pills for each time.
A：_________________.Is it serious,doctor?
B：No,it’s nothing serious.Drink lots of water and you’ll be better soon.
A：Thank you!