阅读对话，完成下列各题。

Amy： Hi， Sarah. What do you have for lunch?

Sarah： Fish. It's delicious. What about you?

Amy： I have beef and vegetables. I like vegetables. They're fresh and healthy.

Sarah： My favorite food is ice cream. But I can't eat too much.

Amy： Why?

Sarah： Because I'm heavy now. I have to eat more vegetables.

Amy： You're right. We need to have more vegetables and fruit.

Sarah： I know. What's your favorite fruit?

Amy： I like apples. They're sweet.

Sarah： I like apples, too. But bananas are my favorite fruit.