13.______ missing the flight, passengers are required to arrive at the airport counter during boarding time.
(A) Avoid
(B) Avoiding
(C) To avoid
(D) Avoidance of
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統計: A(57), B(66), C(393), D(26), E(0) #1831854
統計: A(57), B(66), C(393), D(26), E(0) #1831854