-When are you leaving?　-My plane at six.A. took offB. is about to take off C. takes offD

问题补充：

-When are you leaving?

-My plane at six.

A. took off

B. is about to take off

C. takes off

D. will take off

答案：

A. took off

B. is about to take off

(答案→)C. takes off

D. will take off

解析：因为主语是飞机并非我,所以此句只是说明飞机6点起飞这个事实。