第二部分 英语知识运用(共两节,满分35分)
第一节 单项填空(共15小题;每小题1分,满分15分)
请认真阅读下面各题,从题中所给的A、B、C、D四个选项中,选出最佳选项,并在答题卡上将该页涂黑。
21. _____ hearing the news, all of us jumped with joy.
A. At B. For C. On D. Before
22. According to a recent U.S. survey, children spend up to 25 hours a week ______ TV.
A. to watch B. to watching C. watching D. watch