单选题

【正确答案】 A
【答案解析】[听力原文] Mrs Jones came to meet us at the airport. We thought she was the secretary, but she turned out to be the president of the company.
【正确答案】 C
【答案解析】[听力原文] After Susan carefully explained her ideas at the board meeting last week, the directors all voted for the change she's made concerning the proposed project.
【正确答案】 B
【答案解析】[听力原文] Of the students participating in our university's research project, 73% classified themselves as freshmen and sophomores.
【正确答案】 D
【答案解析】[听力原文] Originally we had planned to buy a car by the end of last year, but then with the recent fluctuation of the crude oil prices, we decided to postpone the purchase.
【正确答案】 B
【答案解析】[听力原文] Most people I know are interested in the proposed tax reform being debated in the congress, because they hope it will lower taxes for them.