C. what to do with it D. to do what with it
179. The research is so designed that once ______ nothing can be done to change it.
(2002广东)
A. begins B. having begun C. beginning D. begun
180. There is a new problem involved in the popularity of private cars _______
road conditions need______. (2003上海)
A. that; to be improved B. which; to be improved
C. where; improving D. when; improving
181. --- Why did you go back to the shop?
--- I left my friend______ there. (2003北京春招)
A. waiting B. to wait C. wait D. waits
182. The manager, ______ his factory’s products were poor in quality, decided to
give his workers further training. (2003北京春招)
A. knowing B. known C. to know D. being known
183. The man we followed suddenly stopped and looked as if _______ whether he
was going in the right direction. (2003北京春招)
A. seeing B. having seen C. to have seen D. to see
184. Don’t be discouraged. ______ things as they are and you will enjoy every day
of your life. (2003上海春招)
A. Taking B. To take C. Take D. Taken
185. I don’t know whether you happen ______, but I’m going to study in the USA
this September. (辽宁卷)
A. to be heard B. to be hearing C. to hear D. to have heard
186. The flu is believed ______ by viruses that like to reproduce in the cells inside
the human nose and throat. (上海卷)
A. cause B. being caused C. to be caused D. to have caused
187. The captain was the last one ______ the sinking ship.
A. to leave B. leaving C. left D. to have left
188. Everyone here will thank the firefighters for the things they have done to
prevent fires ______ the environment safer. (烟台诊断)
A. make B. to making C. to make D. from making
189. He was arrested because he had something ______ with the accident.
A. done B. to do C. doing D. do
190. ______ at a college or university in the USA, Chinese and other international
students must demonstrate a strong ability in spoken and written English.
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