問題詳情

37. Two of the planes ______ overseas carriers have crashed in recent months in similar accidents.
(A) flown by
(B)flying by
(C) to fly by
(D) which are flying by

參考答案

答案:A
難度:困難0.37037
統計:A(40),B(27),C(2),D(28),E(0)

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