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David got a computer from his parents as a birthday gift last week.It's black.And it is small and（1）

which only weighs 1.2 kg.He likes it very much because he can do（2）

things with it.With the computer，he can search for some（3）

on weekdays.And he can chat with his（4）

and watch（5）

at weekends.David knows his parents have some worries although they brought him the computer.They are worried that he may（6）

too much time on the computer，which （7）

his study.So David promised them that he would（8）

the computer and be the owner of it.