下面的短文有10处空白,每处空白后的括号内有一个词,请根据短文内容将其正确的形式填入文中,以恢复文章原貌,并将答案写在答题纸相应的位置上。
“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.