—I usually travel by train.—Why not ________ by plane for a change?
A、to try going
B、trying to go
C、to try and go
D、try going
【正确答案】：D
【题目解析】：why not do sth 为什么不做某事呢？try to do sth尝试做某事(侧重努力）try doing sth 试图做某事（不注重结果），句子中只是提建议不需要努力，因此要用try doing ，D 正确
