178. It has always been the _____ of our firm to encourage workers to take part in social activities.

　A. plan B. campaign C. procedure D. policy

177. The most important _____ of his speech was that we should all work whole-heartedly for the people.

　A. element B. spot C. sense D. point

176. When I worked as the general manager of the firm, I sometimes had _____ to visit London on business.

　A. opportunity B. possibility C. occasion D. chance

175. The managing director promised that he would _____ me as soon as he had any further information.

　A. communicate B. notice C. notify D. note

174. These plastic flowers look so _____ that many people think they are real.

　A. beautiful B. natural C. artificial D. similar

173. When the big bills for mother's hospital care came, father was glad he had money in the bank to _____.

　A. fall short of B. fall through C. fall back on D. fall in with

172. The farmers were more anxious for rain than the people in the city because they had more _____.

　A. at length B. at last C. at stake D. at ease

171. It is clear that the whole world is passing through a social revolution in which a central _____ must be taken by scientists and technologists.

　A. process B. attention C. measure D. part

170. The author of the report is well _____ with the problems in the hospital because he has been working there for many years.

　A. acquainted B. informed C. enlightened D. advised

169. With the change of the economic foundation the entire immense superstructure is _____ rapidly transformed.

　A. anything but B. more or less C. at large D. any more