____________ part of a plant does something special.
A. Some
B. each
C. Each
I'd also like to be a policeman when I ____________.
A. grow up
B. grow into
C. come out
—____________ your father's job?
—He is a doctor.
A. What
B. What's
C. How's
Little seeds grow up ____________ plants and trees.
A. to
B. be
C. to be
—Can yellow leaves make food?
—____________.
A. Yes，they can
B. No，they can't
C. Yes，they can't
