用所给词的正确形式填空。

1. I love winter because I like __________. (skate)

2. She has many things _________. (do)

3. The story is interesting and my little brother is _______ in it very much. (interest)

4. My mother often feels tired after ________. (walk)

5. We should often do exercise to keep ourselves ________. (health)

这个相关散点图表示（）

A.相关很高，是正相关

B.相关很高，是负相关

C.相关很低，是正相关

D.相关很低，是负相关