1 . To some, happiness is being ________________ (环绕) by family and friends. (根据汉语提示单词拼写)

2 . Every tree that is cut down is a part of the habitat of animals such as these koalas. In this way a lot of animal homes _________ ________ _______!(destroy) (所给词的适当形式填空)

3 . Now with the development of science and technology, more robots ________ to do the housework.

A．are using	B．are being used
C．were used	D．will be used

4 . 我们的毛皮用来制作像你穿的那种毛衣。(被动语态)

5 . 当你被问到难题的时候，你应该怎么做？（被动语态）

6 . 你认为中国的熊猫正处在危险中吗？(in danger)

7 . Effective measures ____________(take) to help them now. (所给词的适当形式填空)

8 . A strong wind   is blowing and the fallen leaves are being ______ _______ (横扫)into the air.

9 . Don't worry! Measures___ ___ ___（take）at present to stop such a thing from happening again. （所给词适当形式填空）

10 . Hengshui will soon take on a new look as many roads and streets        widened or rebuilt.

A．had been

B．have being

C．are being

D．were being