◎ 题干
— Can you tell me what time the flight to Detroit leaves?
— I'm sorry, but it ____ due to the fog.

A. has been canceled
B. had been canceled
C. has canceled
D. had canceled
◎ 答案
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◎ 解析
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◎ 知识点
    根据n多题专家分析,试题“— Can you tell me what time the flight to Detroit leaves? — I'm sorry, but it ____ due to the fog. [ ]A. has been canceledB. had been canceledC. has cancel…”主要考查了你对  【现在完成时的被动语态】  等知识点的理解和应用能力。关于这些知识点的“档案”,你可以点击相应的链接进行查看和学习。