问题
选择题
-What's the most expensive way to travel?
-_____. [ ]
A. By bike
B. On foot
C. By air
D. By bus
答案
答案：C
搜题请搜索小程序“爱下问搜题”
-What's the most expensive way to travel?
-_____. [ ]
A. By bike
B. On foot
C. By air
D. By bus
答案：C