150. This morning, I encountered a friend I haven't seen for a long times. a. encountered b. haven't c. for d. times → d 151. It is possible to infer two completely opposite conclusion from this set of facts. a. is b. to infer c. completely d. conclusion → d 152. He is not very sanguine about his chances of successful. a. very b. sanguine c. about d. successful → d 153. She admires Korean actresses in so far as she wears as them. a. admires b. actresses c. as d. them → c 154. She presented reward for the return of her lost bracelet. a. presented b. for c. of d. lost → a 155. We are interested of the conservation of forests. a. interested b. of c. conservation d. of → b 156. I think there are any resources that we have left untapped. a. are b. any c. that d. untapped → b 157. He enrichs his knowledge by listening to the radio every night. a. enrichs b. knowledge c. listening d. every night → a 158. We have searched for some of the books to which you need. a. have b. for c. books d. to which → d 159. It is many years for Mount Vesuvius last erupted. a. is b. years c. for d. last → c 160. Reforming the education system will be a difficulty process. a. Reforming b. system c. will d. difficulty → d 161. I found it hardly to keep my concentration with such a noise going on. a. it b. hardly c. concentration d. such → b 162. I keep my reference books near in my desk for convenience. a. keep b. reference c. near in d. convenience → c 163. Put the cap back on the bottle, otherwise the juice would spill. a. Put b. on c. otherwise d. would → d 164. All pilots are responsible for their passengers' safe. a. pilots b. responsible c. for d. safe → d 165. The country air are fresh, moreover, it is not polluted. a. country b. are c. moreover d. polluted → b 166. I always make a point of checking that all the windows are shut after I go out. a. make b. checking c. all d. after → d 167. We are having a little get-together to celebrate David promotion. a. having b. a little c. to celebrate d. David → d 168. She is enough old to be independent of her parents. a. old b. to be c. of d. parents → a 169. The train he got on has an accident but he was unharmed. a. he b. has c. but d. was → b 170. You need attach a label to each piece with luggage. a. need b. a c. to d. with → d 171. You should wear conspicuous clothes when to walk at night. a. wear b. when c. to walk d. at → c 172. She made a few conventional remark about the weather. a. made b. conventional c. remark d. the → c 173. She can look back on her career with greatly satisfaction. a. look b. on c. with d. greatly → d 174. I feel a certain apprehension with my interview tomorrow. a. feel b. certain c. with d. tomorrow → c 175. What was she said convinced me that I was mistaken. a. was b. said c. me d. mistaken → a 176. A well tool-box is a handy thing to have in the house. a. well b. handy c. to d. in → a 177. One of his less attractive trait is criticizing his wife in public. a. of b. less c. trait d. in → c 178. The driver was tooting his horn as he reached the bend. a. The b. was tooting c. as d. reached → b 179. Try to more positive in dealing with the problem. a. Try b. to c. in d. with → b