一个英语问题（关于变否定式的）
问题描述：
一个英语问题（关于变否定式的）
All of them are going to attend the meeting.
1)None of them are going to attend the meeting.
2)None of them are not going to attend the meeting.
应该是1）2）中哪一句呢?应该是第一句吧?
答
第一句