5. 这个男孩还没有到独立处理这样的难题的年龄。

　 The boy isn’t _________________________ such a difficult problem by himself.

4. 许多对我们有危险的工作将来都能由机器人来做。

　 A lot of work which is dangerous to us can ___________________________.

3. 你知道火星离地球有多远吗？

　 Do you know _____________________________ Earth?

2. 他认为这部小说值得再读一遍。

　　 He thinks this novel _____________________________.

1. 孩子们被告诫不要用太多的时间玩电脑游戏。

　　 The children were told ________________________ in playing computer games.

10. The first step towards _______________ (protect) the environment is to try to throw away less rubbish.

9. Our Maths teacher ____________ (prepare) the new lesson with other teachers in the office from 2 to 4 yesterday afternoon.

8. The policeman said that he _______________ (see) a Young Pioneer help an old woman cross the road the day before.

7. Many changes _____________ (take) place in our daily life since the invention of the computer.

6. Today, to hold the Olympic Games ______________ (consider) as a rich prize for a country.