None of them ______ my friends.a.is b.are c.was d.has been

问题描述:

None of them ______ my friends.a.is b.are c.was d.has been

a
None of 用单数

同意,没有人用单数。顺便提醒“everyone”也是单数哦。

a
没有一个人,用单数