Now the iPad is a new kind of computer without k_____ What do you do n_____?
At first ,s_____ on the computer.At last ,don't forget to t____off it.
-Who is the m_____in your class?
-Daming is .
It's a good idea fot young people _____(make) travel plans on the Internet.
我经常打游戏,并从网上下载音乐
I often ____ ____and _____ _____ ______ the Internet
我去北京度假前得上网查查列车时刻表,再买一张火车票
Before I go to Beijing on holiday,I have to ____ ____ ____and _____ _____ ____ _____.