根据句意及首字母(汉语)的提示，补全单词。

l. Catherine stayed i_____ because it was raining.

2. Peter k  ___  the glass off the table and broke it.

3. I bought a_____(篮子)of apples yesterday.

4. This had made it necessary for agriculture and industry to d __    very quickly.

5. You have to file away for hours to get this   ___  (金属)smooth.