1 . ______ of what happened in advance, she stood in the meeting room, confused and awkward.

A．Not having been informed	B．Not being informed
C．Having not been informed	D．Have been not informed

2 . Until ________, the money won’t go to another ambitious investment plan, ________ is run by high-achieving stockbrokers.

A．recovering; which	B．recovered, one
C．having been recovered; which	D．having been recovered, that

3 . 会议上正在讨论的这些问题非常重要，大多数都与我们学校的发展密切相关。（非限制性定语从句）
The questions ________ at the meeting are of great significance ________ are closely related to the development of our school.

4 . Listen! Can you hear the opera________ somewhere near here?

A．singing

B．being sung

C．sung

D．to be sung

5 . _______ in having trade talks with a foreign company, she has stayed up for several nights.

A．Occupied

B．Being occupied

C．Having occupied

D．To occupy

6 . ________ by Arun with a number of customers, the idea of developing solar-power batteries for people in India would work definitely.

A．Being tested	B．Having been tested
C．Having tested	D．To be tested

7 . _________several times by the publishers, Charlottee still kept on writing and eventually had her novel published.

A．Rejecting	B．Being rejected
C．Having rejected	D．Having been rejected

8 . Many people have no idea what to do when a disaster strikes. _______ is the best way to increase your chances of survival.

A．Prepared

B．Having been prepared

C．Being prepared

D．Preparing

9 . 找出谓语动词和非谓语动词：
1. They went to the park, singing and talking.
2. Having done his homework, he played basket-ball.
3. The problem being discussed is very important.
4. Having been told many times, the naughty boy made the same mistake.
5. Not knowing how to do it, he went to her for help.
6. Not having heard from her son for a long time, the mother worried a great deal.

10 . _________(talk) to change my attitude, I finally got the right way to rid myself of carelessness and gained confidence as well. (所给词的适当形式填空)