Ответ:

1. ----

2. My mum's hair is more straight than mine.

3. Martin's trousers aren't tighter than Kevin's.

4. His suit is more formal than Fred's T-shirt and jeans.

5. Her earring are bigger than Jill's.

6. This dress is longer than my other one.

7. Cindy is worse than her sister getting dressed.

8. Mike is better than Ralf at shopping.