提示：Alice问Bill现在感觉怎样，今天早上是否看过病。Bill说他睡一觉病就好了。Alice说 Bill家不远处有一家诊所，要他去看好病，以便参加Linda明天的聚会。
Alice: Hello, Bill. It's Alice.{{U}} (51) {{/U}}?
Bill: Not too well, I'm afraid.
Alice:{{U}} (52) {{/U}}?
Bill: No, I didn't. I think I just need some sleep{{U}} (53) {{/U}}.
Alice: Listen, why don't you go to see the doctor? There is a walk-in clinic on Lincoln Street.{{U}} (54) {{/U}}.
Bill: I don't want to go to see the doctor for a common cold. I know I'll be all right after a night's
sleep.
Alice: But do you still remember we have a surprise party for Linda tomorrow? Are you sure{{U}} (55) {{/U}}?
Bill: Oh, yes. You are right. I guess I should see a doctor. Talk to you later.
Alice: Take care.