【题目】I feel both excited and nervous to speak before such a large audience, so I spent a lot of time _______ my lecture.
A.promotingB.releasingC.refreshingD.polishing
在线课程【答案】D
【解析】
考查动词词义辨析。句意：面对这么多听众讲话，我感到既兴奋又紧张，所以我花了很多时间润色我的演讲稿。A. promoting促进；B. releasing释放；C. refreshing恢复精神；D. polishing打磨，润色。“演讲稿”应该是“被打磨，被润色”。故选D。