7. Peter is a naughty boy who likes to play _______ on other people all the time.
(A) tracks
(B) trades
(C) tricks
(D) trends
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統計: A(23), B(20), C(435), D(12), E(0) #2556013
統計: A(23), B(20), C(435), D(12), E(0) #2556013