动名词和被动语态

1、______with the new method, the material does not break up easily.
A. To have treated B. Having treated C. Being treated D. Having been treated

2、We were overjoyed at the news of China___another man-made satellite.
A.having launched  B.to have haunched C.to launch D.launched
要等人造卫星发射成功吧？我选了Ｂ，可是错了．

3、The noise of desks_____could be heard out in the street.
A.opened and closed  B.to be opened and closed C.being opened and closed D.having been opened and closed

"动名词的时态和语态我有点搞混，什么时候用什么动名词语态？还有时态怎么分？您帮我清理一下头绪吧吧！

4、On his return from his college, he found the house ______.
  A. deserting   B. deserted   C. desert   D. to be deserted
老师，这题不可以用被动语态吗？屋子被荒废了。

谢谢！

[ 本帖最后由 Lorraine 于 2008-7-23 12:05 编辑 ]