问题
选择题
Ladies and gentlemen, please fasten your seat belts. The plane______.[ ]
A. takes off
B. is taking off
C. has taken off
D. took off
答案
答案：B
搜题请搜索小程序“爱下问搜题”
Ladies and gentlemen, please fasten your seat belts. The plane______.[ ]
A. takes off
B. is taking off
C. has taken off
D. took off
答案：B