問題詳情

16.. _____ in airplane before, the little girl was surprised and alittle frightened when her ears popped.
(A) Had ever flown
(B) Having never flown
(C) Because not flying
(D) Because she never flew

參考答案

答案:B
難度:適中0.492823
統計:A(34),B(103),C(13),D(43),E(0)

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