Ladies and gentlemen, please fasten your
题型:选择题
问题:
Ladies and gentlemen, please fasten your seat belts. The plane _____ .[ ]
A . takes off
B. is taking off
C. has taken off
D. took off
Ladies and gentlemen, please fasten your seat belts. The plane _____ .[ ]
A . takes off
B. is taking off
C. has taken off
D. took off