Today is September 10. It's ______ Day. I'll send cards to my teachers.
A. Teachers'
B. the Teachers'
C. a Teacher's
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There is some _____ in the basket.
A. bread
B. hamburgers
C. apples
This is _____ ball. You shoould return it to him at once.
A. the boys'
B. the boy
C. the boy's
Those are black ______.
A. bike
B. a bike
C. bikes
There are some new books for _____ in the library.
A. child
B. children
C. childrens