Our flight____arrive. Please drive faster， or we ____late.

Our flight____arrive. Please drive faster， or we ____late.
A、is to， are
B、is going to， were
C、will， are
D、is about to， will be
【正确答案】：D
【题目解析】：be about to 表将来，即将，句意：飞机就要起飞了，开快点，否则我们就要迟到了。迟到为将来因此要用将来时，will be 。