who
01
谁
used in questions to ask about the name or identity of one person or several people
例子
Who is going to pick up the kids from school?
谁要去学校接孩子？
02
谁, 那个人
used to refer to people or animals with names
例子
The person who is standing over there is my brother.
站在那边的人是我的兄弟。
03
谁, 那个人
used to represent a person as the subject or object of verb or preposition in a sentence
例子
They will announce who gets the promotion.
他们将宣布谁会得到晋升。
