1 . It is said that his son is studying in a foreign country now. (句型转换)
→His son _________________ in a foreign country now.

2 . ________________ the air in this city will become much cleaner.
人们希望这个城市的空气会变得更干净。

3 . ________________ one third of citizens plan to buy a car.
据报道，三分之一的市民打算买车。

4 . ________________ global warming is due to human activities.
人们相信，全球变暖归因于人类的活动。

5 . Police ________________.
警方把事故归咎于危险驾驶。

6 . What makes me happy is that I’ll ________________ next year.
让我高兴的是我明年就能还清债务了。

7 . It was ________________ that they had to change the schedule of leaving.
因为恶劣的天气他们不得不改变了离开的日程。

8 . Thanks for helping me so much. I ________________.
谢谢你帮了我那么多。我欠你一个人情。

9 . 我们提倡循环利用纸张和塑料。（一句多译）
（1）We______________papers and plastics.
（2）______________that papers and plastics should be recycled.

10 . I was ________________ to see the lion standing next to the baby.
看到狮子站在婴儿旁边，我非常惊讶。