Who is the person is standing at the gate of Beijing Tourism Tower?A.that B.who C.which D.whom
问题描述：
Who is the person is standing at the gate of Beijing Tourism Tower?A.that B.who C.which D.whom
答
答案为A.
定语从句that is standing at the gate of Beijing Tourism Tower修饰先行词the person.
因为这个句子是以who为疑问词的疑问句,则定语从句不能用who来引导,以避免重复,
只能用that.