Who the hell d'you suppose he is, Evie?
Who had said that, about perfection and reality?
He was waiting for her to ask who it was.
Peter looked about the room to see who was missing.
You might go far,..who knows?
牛津高阶第八版
美国韦氏词典
Dictionary.com
Free Dictionary
维基百科 (自由的百科全书)