“Friends” on Instant Messaging (即 时通讯) In the past, most people _communicated_ (communicate) by phone or letter. Not many people had____1 __ (hear)of e-mail or Instant Messaging (IM). Today,many ___2___ (adult) send e- mails as their primary means of communication.Teenagers spend much of their time___3___ (use) IM to chat in real time. With access to billions of people, the meaning of a "friend"has___4____(change). Online friends are often people that teenagers don't know in their real life. They may be people that teenagers met online by chance. Such a relationship lacks real-life investment in a ___5___ (friend). Online friends don't ____6___ (real)know about one another. Therefore, these"friends" are more likely to be___7___ (kind). Furthermore,

teenagers can___8___(easy)be fooled. As a result, people who are ___9___ (hide)their real purpose are___10___ (increasing) targeting teenagers.