Liu Sijiang (teacher): The Net improves the speed of communication, but there are many people who lie on it. Therefore, it is natural that some people are 41 (worry) about the girl in Nanjing, who made friends with an American teacher by email.
Xu Yong (student): These days, 42 (make) friends online is a part of many people's lives. I think we can make good and helpful friends online, just like the girl from Nanjing. So don't be afraid to do 43 you think is right.
Ding Yixiang (student): As the most 44 (importance) communication tool at present, the Internet helps us to know and understand world affairs. 45 is also easy to make friends with foreigners through your keyboard. 46 , a "friend" might lie to you. Only if young people can control themselves well and know what is good and what is bad, making friends on the Net should not be 47 problem at all.
Zhou Jian (student): It is hard to say 48 or not it is good to make friends on the Internet. In fact, some bad and harmful things have indeed happened. However, I like to make friends online. I often share my happiness and sadness 49 my friends there. They can offer me some advice 50 tell me how to solve problems when I am in trouble.