用所给单词的适当形式填空。

1. My brother is two years _____________ (old) than me.

2. Tom is as _____________ (fat) as Jim.

3. Who is _____________ (thin), you or Helen?  Helen is.

4. Does Nancy sing _____________ (well) than Helen?  Yes, she does.

5. Which is _____________ (heavy), the elephant or the pig?

6. Whose pencil-box is _____________ (big), yours or hers?  Hers is.

7. You have seven books, but I have _____________ (many) than you. I have ten.

8. I jump _____________ (far) than some of the boys in my class.

9. I'm very tall, but she's _____________ (tall) than me.

10. It gets _____________ and _____________ (warm) when spring comes.