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)

炮眼布置中的掏槽眼应比一般炮眼（）。

A．深0.2~0.3m

B．等深度

C．浅于其它炮眼