_____ gave me her own Wechat number.
A. He
B. She
C. They
D. You
There ______ a book on the desk.
A. are
B. have
C. is
D. has
There ______ many girls playing baseball on the playground.
A. are
B. has
C. is
D. have
Please call ______ David.
A. my
B. me
C. I
D. we