none of my friend left early .she kept none of his letters.我不明白为什_英语解答

none of my friend left early .she kept none of his letters.我不明白为什么前面的“朋友”要用单数?
复数可以么?none of my friends.还有一句话 it's none of your business.这里可以改成复数么?或者说这里应该做另外一种理解?希望能够得到清晰的答案.

人气：375 ℃　时间：2020-08-30 07:11:34

解答

none of my friend 不正确,应为:none of my friends
又如:None of your friends like the film,did they?
你的朋友中没人喜欢这部电影,是吗
none of your business 没你的事；别管闲事
这是固定搭配,不能改成复数.