2013
高考英语二轮单项选择---通用题+定语从句专题(1)(答案) 16. --- what is the _____ for your being late? --- i am sorry i missed the first bus. a. reason b. excuse c. cause d. explanation 17. the collapse of the world trade centre has put us economy in a difficult _____. (2003上海春) a. occasion b. case