1. 选词填空。

a       an

1. （1） —What's this?

   —It's apple.

3. （2） —What' this?

   —It'sred apple

5. （3） It'sbig egg for you.
7. （4） Look, that isEnglish book.
9. （5） —Lily, I'll give youorange coat.

    —Thank you. But I like blue coat very much.

11. （6） It'sumbrella under the tree.