（1）When is Bob's grandpa's birthday？
A.On Monday.
B.On Tuesday.
C.On Wednesday.
（2）What's Bob's mother doing？
A.She's dancing.
B.She's singing.
C.She's eating.
（3）What color are Bob's grandparents' hats？
A.Red
B.Purple.
C.Yellow.
（4）How many people are dancing？
A.Two.
B.Three.
C.Four.
（5）Who is eating the birthday cake？
A.Bob's cousin.
B.Bob's brother.
C.Bob's sister.