题目内容：

    Playing computer games is a lot of fun. It is very popular with children. They love to play them in their free time. Here are some important things for you to remember when you play computer games.

First, don't spend too much time playing computer games. It is bad for your eyes. Taking a break after playing for 40 minutes is good for you.

Second, you need to learn English well. Many computer games show only in English. If your English is very poor, you can't know more about it.

Third, don't leave your personal(个人的)information on the Internet. Some bad guys may use it to hurt(伤害)you.

Follow these tips, and you can be a happy computer game player.

1.We should take a break ______  when we play computer games.

A.every 20 minutes B.every half an hour C.every 40 minutes D.every two hours

2.How can we know more about computer games?

A.By learning English well.

B.By asking teachers for help.

C.By playing computer games all the time.

D.By playing computer games with more friends.

3.We should not leave our personal information on the Internet because ______.

A.someone may know us well

B.the information may be lost

C.someone may ask us to do bad things

D.the information may be used by bad people

4.How many tips does the writer give us?

A.Two. B.Three. C.Four. D.Five.