单项选择：
1. 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
2. ---Go for a picnic this weekend, OK?
---_______. I love getting close to nature.
A. I couldn’t agree more B. I’m afraid not
C. I believe not D. I don’t think so
