如题：Everything ____ is shown is of great use to us. A.that B.which C.who D.it
问题描述：
如题：Everything ____ is shown is of great use to us. A.that B.which C.who D.it
答
A.that
Everything做引导词用that请问这句话什么意思啊？所有展示的东西对我们都很有用！