阿摩線上測驗
1. They found a group of children ____ in the middle of the street.
(A) played
(B) being playing
(C) to play
(D) playing
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統計： A(40), B(18), C(25), D(293), E(0) #2178300
統計： A(40), B(18), C(25), D(293), E(0) #2178300
