根据句意，用括号内所给单词的适当形式填空。

1. She bought a _____ (bath) suit last Sunday.

2. I like doing some _____ (shop) at weekends.

3. She hasn't _____ (feed) the cat yet.

4. There are about ten _____ (well) in that village.

5. Has the camera been _____ (pack) yet?

超重机的工作级别为40％是（）工作制，40％的含义是（）。