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
考查时态。用现在进行时表将来。
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
考查时态。用现在进行时表将来。