阿摩線上測驗
120 Due to the sudden storm, the airline announced the _____ of all outgoing flights.
(A) cancel
(B) canceled
(C) canceling
(D) cancellation
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統計： A(186), B(117), C(137), D(1031), E(0) #3772628
統計： A(186), B(117), C(137), D(1031), E(0) #3772628
