题目内容
I adies and gendemen, please fasten your seat belts. The plane________.
[ ]
A.takes off
B.is taking off
C.has taken off
D.took off
答案:B
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题目内容
I adies and gendemen, please fasten your seat belts. The plane________.
A.takes off
B.is taking off
C.has taken off
D.took off