根据对话的上下文，在横线上写出所缺少的内容。
A: Good morning, boy. ①_______?
B: I feel terrible.
A: ②_______ have you been like this?
B: About two days.
A: Let me take your temperature first.
B: Anything serious?
A: Don't worry. It's ③_______. You've just got a cold.
B: Then what should I do?
A: You'd better ④_______. And you'll be all right in a few days.
B: Oh, that's fine. ⑤_______.
A: You're welcome.