---When will the plane leave?
---It very soon.
A. leaves
B. is leaving
C. has left
D. had left
网友回答
A. leaves
(答案→)B. is leaving
C. has left
D. had left
解析：考查将来时的表达法。本题考查的将来时的几种表达法。一般现在时用于时间状语从句，条件状语从句中代替将来时。现在完成时也用于时间状语从句或者条件状语从句中代替将来时。现在进行时表示按照计划安排将来要发生的事情。句意：—飞机什么时候起飞？—很快就起飞了。故B正确。