题目内容：

It is slow to go to Shanghai by train.let's go there by plane___?
A.instead of B.instead C.at that moment D.at times
why?

优质解答

B 代替
A instead of 后面要加宾语
C 在那时. 不合语境,而且一般用于过去时
D at times 有时,偶尔