用括号中的词适当形式填空.

1. -Excuse me, Tony.  Is this _______ ( you)  notebook?

    -Oh, yes. Thank you.

2. Please_______( call)  me at 2058955.

3. 一Is that your pencil sharpener?

    -No, it ________(be not). It's his pencil sharpener.

4. Is that your computer game in the ________(lose) and found case?

5. I have a set of_______(key).