问题补充:
I Beijing in a few days. Do you know when the earliest plane ?
A. leaves; takes off
B. is leaving off; is taking off
C. am leaving for; takes off
D. leave; is taking off
答案:
A. leaves; takes off
B. is leaving off; is taking off
(答案→)C. am leaving for; takes off
D. leave; is taking off
解析:考查时态:句意:几天后我要动身去北京,你知道最早的一班航班是什么时候起飞?第一空用现在进行时表示即将,马上做,第二空用一般现在时,表示“按时刻表即将做”,选C。