请认真阅读下面短文，并根据各题所给首字母的提示，写出一个合适的英语单词完整、正确的形式，使短文通顺。
A man walked i_______ a doctor's examining room. “Put out your tongue (舌头) ,” the doctor said. The man put out his tongue, and the doctor looked at it quickly.
“OK, you can put your tongueb________ now,” the doctor said. “It's clear what's wrong with you. You need more exercise.”
“But, doctor,” the man said. “I don't think …”
“Don't tell me what you think,” the doctor said, “I am the doctor, not you. I know what you need. I see hundreds of people like you. N________ of them get any exercise. They sit in offices all day and in f________ of the TV in the evening. What you need is to walk quickly for at l________ 20 minutes a day.”
“Doctor, you don't understand,” the patient said. “I…”
“I don't want to hear anye________,” the doctor said. “You must find time for exercise. If you don't, you will get fat and haveh________ problems when you are older.”
“But I walk every day.” the patient said.
“Oh, yes, and I know that. You walk a few feet from your house to your office, or a few more feet from your office to a restaurant, etc. That is not real walking. I'm talking about a walk in the park for twenty minutes every day.”
“Will you listen to me, doctor!” the patient s________, getting angry with the doctor who thought he knewe________. “I'm a postman,” the patient went on. “and I walk for seven hours every day!”
For a moment the doctor was silent, then he said quietly, “Put your tongue out a________, will you?”