( )Do you know the boy under the tree?_____ one?A.Who B.Whose C.Which D.When
问题描述：
( )Do you know the boy under the tree?_____ one?A.Who B.Whose C.Which D.When
答
选C,who,whose都是人称代词,题目中的one已经指代那个男孩了所以都不能选,再根据题意