I often _____ ping-pong.A.play B. have C. do
____ are standing. A. she B.It C.They.
What ___ they playing ? A. are B. am C. is
What are they ____? A.matter. B. doing. C. look.
She is ____. A. this B. what. C.talking.
We ___ a happy family. A. a B. is C.are