my plane -----at 9o,clock tomorrow morning.will you come to see me off?

问题描述:

my plane -----at 9o,clock tomorrow morning.will you come to see me off?
A will be leave B leaves C will have left D is left
答案是B为什么?

一般飞机火车的时刻表都用一般现在是 表示固定的时刻