who is this 或Who is that的回答可以用she is 或he is吗还是必须用this is 或that is

Who is this man? who is this man? who is this girl Who is this man who is this gay? who is this guy? who is this This is WHO? Who is this? who is This boy Who is this? who is this 或Who is that的回答可以用she is 或he is吗还是必须用this is 或that is who the fuck is this, who is who is who is this letter from?who 什么成分? Who is this man 是什么意识 改错Who's book is this?（）