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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).

A. aunt    
B. uncle    
C. cousin
D. sister