( )1. Put out the cigarette, or________ w on't be allowed to enter the museum.
A. I B. she C. you D. they
( )2. —What are you looking for, Li Ping?
—I am looking for my math book. I can't find________ anywhere.
A. it B. this C. them D. one
( )3. —My answer to this question is different from ________
—Really? Let me see.
A. you B. yours C. your D. yourself
