I usually go there by trainWhy not by boat for a change? A. to try going B. try

问题补充：

--- I usually go there by train.

--- Why not by boat for a change?

A. to try going

B. trying to go

C. to try and go

D. try going

答案：

A. to try going

B. trying to go

C. to try and go

(答案→)D. try going

解析：why not do sth…“为什么不……” ；try doing sth试一试