问题
选择题
I took the wrong train. I even didn't know it _____ half an hour later. [ ]
A. to
B. until
C. by
D. after
答案
答案：B
搜题请搜索小程序“爱下问搜题”
I took the wrong train. I even didn't know it _____ half an hour later. [ ]
A. to
B. until
C. by
D. after
答案：B
