–Excuse me, Madame. Is this plane take off soon?
–Oh, yes. In five minutes.
A. about to
B. starting to
C. beginning to
D. to
网友回答
A. about to
B. starting to
C. beginning to
(答案→)D. to
解析：句意：--对不起，夫人，飞机很快就要起飞吗？--是，五分钟后。和soon连用，用一般将来时，BC是“开始做…”，A项be about to do“即将”，但是不能和soon这样的时间连用，所以用be to do表示一般将来时，所以选D。