Someone____is reading under the tree may be a good student.A.who B.whom C.that D.which
问题描述：
Someone____is reading under the tree may be a good student.A.who B.whom C.that D.which
答
选A 只是who 引导的定语从句
答
C.that
答
A
who 指人,是关系代词,引导定语从句