1. (2020七上·嵊州期中) 用方框中所给单词的适当形式填空，每词限用一次。

she,    be,    ask,    dictionary,    what

1. （1） — is that?

   —It's a pen.

3. （2） Tom has two .
5. （3） Mary and Mike under the tree.
7. （4） —Are those your books?

   —No, they aren't. They're .

9. （5） Paul always his teachers for help.