My mother doesn't like the red sweater, so I have exchange it __________ a green one.
A. with
B. into
C. to
D. for
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My friend showed me ___________ her new house.
A. to
B. for
C. into
D. around
He has just graduated _________________ university.
A. from
B. in
C. on
D. for
Lily is good at ________________ piano.
A. playing
B. playing the
C. play
D. play the
Bowing is used _________ many Chinese traditional ceremonies to express thanks.
A. in
B. for
C. on
D. at