According to a recent U.S. report, children spent up to 25 hours a week TV.
A. watching
B. to watching
C. to watch
D. watch
网友回答
(答案→)A. watching
B. to watching
C. to watch
D. watch
解析：固定结构。Spend some time doing sth花时间做某事；句意：根据一份最近的美国的报告，孩子们每个星期花在看电视上的时间高达25小时。