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(153), B(33), C(64), D(375), E(0) #2725109
統計： A(153), B(33), C(64), D(375), E(0) #2725109
