阿摩線上測驗
32 As a rule of thumb, you need to be at the airport at least 3 hours before ______ when flying
international.
(A) Gate 20
(B) Terminal A
(C) the official time of departure
(D) boarding pass
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統計： A(2), B(3), C(56), D(5), E(0) #2654278
統計： A(2), B(3), C(56), D(5), E(0) #2654278
