在这种情况下， who 是单数：
Who is eating the bones?
Who 是否是单数还是复数， 取决于who的对象， 例如：
Who is he?
Who are they?
Who is the man in blue jacket?
Who are those under the tree?
简单的疑问句里是看后面的主语，比如who are you?看的是后面的you.
在定语从句中看的是主句的先行词，比如
He is the person who teaches me.
一般来说用单数
内容全部来源于网络收集，如有侵权，请联系网站删除：QQ：24596024