问题
选择题
We don't know ______ the meeting will be held soon. [ ]
A. when
B. what
C. whether
D. since
答案
答案：C
搜题请搜索小程序“爱下问搜题”
We don't know ______ the meeting will be held soon. [ ]
A. when
B. what
C. whether
D. since
答案：C