颌骨骨折伴发脑脊液鼻漏时不应（） A.应用抗生素 B.局部保持清洁 C.进行鼻腔冲洗

Mike: Lucy, do you have a computer?
Lucy: __1__
Mike: What do you often do on it?
Lucy: I often visit websites and get some information for my homework.
Mike: __2__
Lucy: No, never. I think playing games wastes(浪费) too much time. What about you, Mike? Do you have a computer?
Mike: Yes. __3__ I think it's very interesting.
Lucy: Oh, I usually send emails to my teachers. __4__
Mike: Do you chat (聊天) with your friends on the Internet?
Lucy: Yes. __5__
1. _____  2. _____  3. _____  4. _____  5. _____