1)---"I usually go there by train"

问题描述:

1)---"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
为何选D,而非B?
2)Have I any choice but ____as you tell me?
A.to do
B.do
C.doing
D.i'll do
为何选A 而非B?
but 后面不是加do么?

1.Why not do……是固定用法,
译为“为什么不……?”
2.A 在第一句中but是介词,与不定式 to do搭配,
含义为“除了照着你说的做以外”.