阿摩線上測驗
2. The teacher's office is_____the first floor.
(A) at
(B) to
(C) in
(D) on
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統計： A(317), B(32), C(95), D(725), E(0) #1909433
統計： A(317), B(32), C(95), D(725), E(0) #1909433
