There are _____ books on the stereo.
A. any
B. some
C. an
D. a
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---______ in that box? ---There are some knives in the box.
A. What
B. What's
C. Where
D. Where's
Your ball is _____ the floor.
A. in
B. at
C. on
D. of
There ______ two knives in the pencil-box.
A. are
B. be
C. is
D. am
These ______ desks are new.
A. student's
B. students'
C. the students
D. students's