15. --- Who are the teenagers gathering at the school gate? --- Well, if you _____ know, they are al...
2023-01-30 20:25:48 46次 2010届高考二轮复习必备单项选择易错题集锦（一） 单项填空 反馈错误 加入收藏 正确率 : 100%
题目内容：
15. --- Who are the teenagers gathering at
the school gate?
--- Well, if you _____ know, they are all
my visiting students.
|
A．need
|
B．must
|
C．may
|
D．Will
|
本题链接：
