18. His parents asked to be kept                  all that happened to him at school. (inform)

他的父母亲要求把他在学校发生的一切事情都告诉他们。

17. The living room is clean and tidy,with a dining table already laid for            . (serve)

起居室既干净又整齐，餐桌已经摆好，就等饭菜上桌。

16. It will take a long time                  . (turn)

要过很长时间中国才能成为发达国家。

15. Every one of us has many responsibilities                  . We cannot avoid and must do our best to undertake them. (attach)

我们每个人都有依附于我们的责任。我们不能回避这些责任，应尽力去承担。

14.                  the possible snowstorm at hand,they determined to stay at home for the holiday. (warn)

被警告可能有暴风雪即将到来，他们决定假期待在家里。

13.                 He has given us several telephone calls his honesty and determination. (convince)

他给我们打了很多通电话，让我们相信他的真诚和决心。

12. Many farmers in the countryside have gone to cities to look for work,leaving their children behind             their grandparents. (stay)

很多农村的农民去大城市找工作，将他们的孩子留在祖父母身边。

11. It is said that most of the young teachers                are PhD. (work)

据说在这所大学里教书的大部分年轻教师都是博士。

10.                   a computer makes it more difficult for him to do his academic research. ( use)

不会使用电脑使他们的学术研究变得更加困难。

9. A number of paintings in this castle are believed               in  a fire in 2009. (destroy)

人们相信城堡里的一些画已在2009年的一场大火里被毁掉了。