16.. _____ in airplane before, the little girl was surprised and a
little frightened when her ears popped.
(A) Had ever flown
(B) Having never flown
(C) Because not flying
(D) Because she never flew
(B) 16. _______ in airplanenbefore, the little girl was surprised and a little frightened when her earsnpopped. (A) Had ever flown 曾經飛過 (B) Having never flown 從未飛過(文法正確) (C) Because not flying 因為沒有飛行 (D) Because she never flew 因為她從未飛過 從未飛過飛機,這個小女孩驚訝,當她的耳朵彈出時有點受驚。