在横线上填入适当的单词,补全对话。(5分)
A: Hello, John. This is Peter    .
B: Hello. You    sad. I heard you had a bad cold. Are you feeling better?
A: No. I’m feeling much worse. I’m afraid of catching H7N9. Do you think I’m going to die?
B: No, Peter. Calm    . You just had the flu. You should go to see the doctor.
A: But I hate to go to the hospital. I’m afraid of     bitter medicine.
B: Don’t be afraid! Follow the doctor’s     and you’ll get well soon.
A: Thanks, John.
B: You are welcome!