问题
选择题
— ____ have you been at this factory?
— I've been here since 1993. [ ]
A. When
B. How long
C. What time
D. How often
答案
答案：B
搜题请搜索小程序“爱下问搜题”
— ____ have you been at this factory?
— I've been here since 1993. [ ]
A. When
B. How long
C. What time
D. How often
答案：B