According to a recent U.S. survey, children spend up to 25 hours a week ________ TV.

更新时间：2022-05-05 20:20:40

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

答案及解析： C

解析：

spend some time (in) doing sth.，中间出现了up to（达到），增加了选择的难度。