阿摩線上測驗
4.During take-off and landing, carry-on baggage must be placed in the overhead compartments or __________ the seat in front of you.
(A) parallel
(B) down
(C) underneath
(D) lower
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統計： A(3), B(14), C(44), D(7), E(0) #666374
統計： A(3), B(14), C(44), D(7), E(0) #666374