问题
选择题
Ladies and gentlemen,please fasten your seat belts,the plane______.[ ]
A.takes off
B.is taking off
C.is going to take off
D.is to take off
答案
答案：B
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Ladies and gentlemen,please fasten your seat belts,the plane______.[ ]
A.takes off
B.is taking off
C.is going to take off
D.is to take off
答案：B