用所给词的适当形式填空

1.    A lot of steps have been taken to prevent waste water (make) the lakes and rivers dirty.

5.      这位教授好像巳经得知自己得了癌症。

The professor seemed____________________   that he had cancer.

4.      中国是世界上经常发生沙尘暴的国家之一。

China is one of the places in the world______________________________ .

3.     沙尘暴厚厚的沙尘经常使人呼吸困难，因此如果我们必须外出的话，最好戴上口罩。

The thick dust in the sandstorm often makes it____________________________ .So we'd better wear a mask if we have to go out.

2.     请你把窗户关上好吗？

Would you be kind_______________________   the window?

根据中文意思使用恰当的句式完成句子

1.     昨天晚上他太疲倦了，没有吃晚饭就早早上床睡觉了。

Last night he_______________________   he went to bed early without having supper.

5.     当他醒来的时候，他发现自己在森林里迷了路，不知道自己身处何地。
When he________________ ， he found himself lost in the forest, not knowing where he was.

4.     大雨使我们无法及时赶到那里。

The heavy rain_____________________________ there in time.

3.     我们遇到了交通堵塞，整个下午的时间都浪费在了路上。

We________________   a traffic jam and wasted the whole afternoon on the road

2.     给你的孩子建议的最好方式是先弄清楚他们想要什么，然后再建议他们去做。

The best way to give advice to your children is to find out what they want and then___________________________ it.