这篇作文有语法错误吗?

题目

这篇作文有语法错误吗?
More and more people have personal computers.We can use them play games,listen to music,watch movies and so on.We can communicate with our friends easily.Sometimes,we can get some information by computer.Of course,we can also study on the Internet .It's very useful for us.
Computers are very helpful in our daily life,but they have brought many problems.For example,if we play computer games too long ,we not only feel terrible,but also affect our study .We won't enough time to read or do our homework.So we should study first,then play computer games during our free time.
这其中有语法的错误吗?

答案

More and more people have personal computers.We can use them 【to】 play games,【to】listen to music,【to】watch movies and so on.We can communicate with our friends easily.Sometimes,we can get some i...