— are you going to Guangzhou?— I’m taking the plane.A. What B. WhyC. When D. How

问题补充：

— are you going to Guangzhou?

— I’m taking the plane.

A. What

B. Why

C. When

D. How

答案：

A. What

B. Why

C. When

(答案→)D. How

解析：句意：--你打算如何去广州？--我将要乘飞机去。分析根据答语的乘飞机去，得知是对交通方式提问，对其提问用how.故选D