11. —Did you look up the time of trains to Shanghai?
—Yes, the earliest train is _____to leave at 5:30 am.
A. likely B. about
C. possible D. due
11. —Did you look up the time of trains to Shanghai?
—Yes, the earliest train is _____to leave at 5:30 am.
A. likely B. about
C. possible D. due
D
选D。be due to do意为“应该…/预期的”；be about to do 不和时间状语连用；possible主语应为it；而likely与句意不合。