问题
选择题
I didn't know when they again. [ ]
A. came
B. were coming
C. had come
D. had been coming
答案
答案：B
搜题请搜索小程序“爱下问搜题”
I didn't know when they again. [ ]
A. came
B. were coming
C. had come
D. had been coming
答案：B