用括号内所给单词的适当形式填空。

1. This problem is ______(easy) than that one.

2. Dick has different kinds of ______(animal) on the farm.

3. Tom writes ______ (careful) than his sister .

4. My ruler is too short . Could you lend me a ______ (long) one?

5. Hong Kong has seven ______ (million) people .

6. Jinan is ______ (hot) than our city .

7. Cambridge has about 100 , 000______ (people).

8. It's never very______(hot) in the summer.

9. —Which ball games does Li Lei like best?

    —I think he ______(like) football best.

10. Her mother ______(wash) her clothes now.