用所给词的正确形式填空。

(in the box, found, an, it's, be, you, how, excuse, please, call, key )

1. Is that ______ watch?

2. What ______ your telephone number?

3. Is that your book in the lost and ______ case?

4. Please ______ Gina at 236-5698.

5. —What's this? 

   —______ a pencil case.

6. I lost a set of ______.

7. He has (有) ______ English book.

8. ______ do you spell "pen"?

9. ______ me! Is this your watch?

10. What's your name, ______?