精选优质文档-倾情为你奉上Part I ocabulary and structure (20 points)Directions: There are 20 incomplete sentences in this part. For each sentence there are four choices marked A, B, C and D, choose the one that best completes the dialogue and mark your answer on the ANSEWR SHEET.1. Fred used to _ late with his roommates and watch movies.A. stay in B. stay away C. stay up D. stay on【答案】C【解析】stay on 继续呆在一起。2. The development of new energy sources _ to be rewarding.A. turned out B. tur
