Directions: There are 40 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
【解析】stay on 继续呆在一起。
2.The development of new energy sources _____ to be rewarding.
A. turned out
B. turned up
C. turned back
D. turned away
【解析】turn out 结果证明。
3.Do you really have to be _____ selfish?
4.I’m sorry to _____ your party; I weren’t in town.
A. be missed
C. have missed
D. be missing
【解析】be sorry to do sth. 对做某事很遗憾、很抱歉。
5.Researchers have spent five years collecting data _____ the study was based.