阿摩線上測驗
19.If your goal is to catch an early High-Speed Rail (HSR) train to Taichung, the 6:00 A.M. MRT is the earliest _____ option from the airport.
(A)viable
(B)valuable
(C)variable
(D)vacant
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統計： A(3), B(5), C(3), D(2), E(0) #3853078
統計： A(3), B(5), C(3), D(2), E(0) #3853078
