阿摩線上測驗
68. Dozens of flights ______ because of the terrible typhoon.
(A)canceled
(B)were canceled
(C)cancels
(D)was canceled
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統計： A(37), B(597), C(14), D(42), E(0) #1616899
統計： A(37), B(597), C(14), D(42), E(0) #1616899
