◎ 题干
Ladies and gentlemen, please fasten your seat belts. The plane______.

[     ]

A. takes off
B. is taking off
C. has taken off
D. took off
◎ 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“Ladies and gentlemen, please fasten your seat belts. The plane______.[ ]A. takes off B. is taking off C. has taken off D. took off …”主要考查了你对  【现在进行时】  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。