176.　 In the past few years, this young scientist has made great___________成就 in his research.

175.　 The storm was _____________伴随by thunder.

174.　 Water can be used to produce____________电.

173.　 Such kind of help form her is always___________欣赏.

172.　 What he has done is_______________值得of being praised.

171.　 We’ll never forget the___________教授 who taught us English at the university.

170.　 The population of this city has_____________下降 from 800,000 to 700,000 in the past decade.

169.　 I don’t know the_________________发音 of this word. Could you tell me how to pronounce it?

168.　 Turn the bottle_____________朝上 down in order to empty it.

167.　 I’m hungry now. Let’s go to the_______________餐馆.