問題詳情

The passengers are asked to keep their seat belts _____ during the flight.
(A)to fasten
(B)fastening
(C)fastened
(D)be fastened

參考答案

答案:C
難度:適中0.556452
統計:A(23),B(64),C(207),D(47),E(0) #
個人:尚未作答書單:The Legend of Black Elk、單字、片語

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