Something must be done to prevent factories ________ poisonous gases so as to keep the city ________.
22. MR Jackson, _______ car I borrowed for his journey, is a famous writer.
Ⅱ.语法和词汇知识(共15小题;每小题1分,满分15分)从 A、B、C、D 四个选项中, 选出可以填入空白处的最佳选项, 并在答题卡上将该项涂黑。21. The foreigners from ____ United States paid _____ visit to the Bird Nest Stadium last week. A. /; the B. /; a C. the; a D. the; /
20.___________most of the people believed the Bears would win, the result came as the opposite.
19.The Internet and the effect______________brought about did a lot of good to our daily life and work.
18.The old couple don’t know what to do with their son, who drinks___________every day.