13.　 He is a devoted advocate who strongly advocates _______clean energies such as the energy of the sun, the wind and ________ instead of ______ those that pollute our environment.

　　 A. to use; so on; to use　 C. using; etc. using　　 C. to use; etc. to use　 D. using; so on; using

12.　 It is imperative that your presentation on how to prevent pollution ______steady economic growth ______in time for the lecture.

　　 A. to keep; be finished　 B. keeping; is finished　 C. to keep; finish　 D. keeping; finish

11.　 Our government has protested time and again that any increase in arms sales to Taiwan is _______ the US government’s _______ the Chinese people but the US government just turns a deaf ear to our protest.

　　 A. breaking; promise B. violating; commitment to C. damaging; promise of D. breaking; commitment with

10.　 There is a widespread belief among the science world _______we keep on ______ the earth as we are doing today, the existence of us humans on this planet will be out of the question in some years yet to come.

　　 A. if; polluting　 B.　 if; to pollute　 C. that if; to pollute　 D. that if; polluting

9. _____has been stated in the annual white book, our national defense budget per year is _______ below the average of developed countries and ______ there is a steady increase every year, China won’t be a threat to　 the world.

A. As; very; even if　　 B. As it; well; even though　 C. As; well; even if　 D. As it; very much even though;

8.　 We have to work out a way to _______their existence here without making them realize that we _______it.

　　 A. oppose to; are opposed to C. be opposed to; oppose to　 C. oppose to; oppose D. oppose; are opposed to

7.　 _______at the graph and you can see clearly that there is a growing tendency towards combination of small companies to become stronger and more competitive in the tough market in recent years.

　 A. One glance　　 B. Taking one glance　 C. To take one glance　 D. Taken

6.　 The phenomenon of global warming _______ to become worse and worse day by day, _______ of which will be catastrophic to human survival, some scientists predict.

　 A. wants; the result　 B. attempts, the consequence　 C. tends; the consequence D. tends; as the consequence

5.　 Large quantities of solid fuel ______consumed every day and too much carbon dioxide is sent into the air, which in turn _______ the going up of temperature.

　 A. is; results in　 B. are; results in　 C. is; leads to　 D. are; results from

4.　 As he didn’t ________ the conditions to _______ more aids to the victims of the catastrophe that came about in Indonesia, he refused to _______his name to the agreement.

　　 A. agree to; contribute; sign　　　　　　　　　　　 B. accept; subscribe; sign

C. agree on; contribute; put　　　　　　　　　　　 D. subscribe to; subscribe; subscribe