阅读下面材料，在空白处填入适当的内容（不多于3个单词）或括号内单词的正确形式。
David and Jack are talking about cyber-relationships in their dorm.
David: Jack, you spend a lot of time on the Internet everyday. What do you most frequently use it for?
Jack:  I usually surf  net, read news and anything I am interested in, check emails or chat with other people. Sometimes I order online too. Maybe I can find a girlfriend online like a fairy tale.
David: Well, I see. That’s  you are so stuck to it.
Jack:  I know dozens of websites provide dating service. Curiosity and the need for companionship make them a sure-fire business. I recommend that you   (try) Baihe.com.
David: To be  , I really can’t understand how   people depend on that way to make friends. It’s kind of risky.
Jack:  Yes, but it’s also one of the easiest and fastest ways to meet new people.
David: Sounds good. But it is full of traps on the Internet, and some people have really  (please) experience about online dating.
Jack:  It’s true, but some people did find their better-half through online dating.
David:      , I won’t try that way to make my girlfriend.
Jack:  Don’t be so sure. If you   (happen) meet a girl online who is intelligent, kind, honest, and you get a good feeling of her, won’t you have the desire to get to know her  person?
David: I won’t have such a chance in the first place, for I never enter the chatroom.
Jack:  Maybe   man’s meat is another’s poison.   
David: That’s right.