1. 选择合适的短语填空。

1. （1） —Here are two hats, do you like?

   —I like the green one．It's so nice．
   

3. （2） —Why are you unhappy?

   —Because I always have a lot of homework to do．

5. （3） —Which brush do you want，Kitty?

   —The one．

7. （4） —．Can you tell the differences between them?

   —Of course．