1. 根据句意及中文提示填写单词。

1. （1） Can I have （额外的）time to finish my work?

3. （2） Human beings are （有创造力的）animals.

5. （3） It's said that we will be （分开）into 2 groups.

7. （4） The boy didn't pay much （注意力）to the exercises and he failed.

9. （5） My uncle is an （精力充沛的）businessman. He always works till midnight.