A-A+
It usually takes much (less) time to fly from
问题详情
It usually takes much (less) time to fly from one country to (another) than (traveling) (by) train.
A．less
B．another
C．traveling
D．by
参考答案
正确答案：C
解析：平行结构错误，应改为to travel。to travel与to fly是两个相比较的平行的结构，故应保持结构一致。
