阿摩線上測驗
10. When the fire alarm rang, the children _____ in the stadium.
(A) are playing
(B) were playing
(C) played
(D) playing
答案：登入後查看
統計： A(11), B(113), C(6), D(1), E(0) #3672726
統計： A(11), B(113), C(6), D(1), E(0) #3672726
