根据中文提示完成句子
1.David经常在网上与朋友聊天。
David often_________ _________ friends on the Internet .
2.CD是Compact Disk的缩写。
Compact Disk________ ________ CD________ _________ .
3.我们应该用电脑学习,而不是玩游戏。
We should use the computer__________ _________ ,but _________ ________ ________ games .
4.你最好多考虑一下你的健康。
You'd better________ ________your health more .
5.当心!上网时不要上肖受骗。
________ ________!Don't be cheated when surfing
1. chat with 2. is called , for short 3. to study, not to play 4. worry about 5. Look out