It was on the floor __ was covered with water ___I hurt myself after falling.
问题描述：
It was on the floor __ was covered with water ___I hurt myself after falling.
A.which,which
B.that,which
C.which,that
D.that,when
D吧?
答
选c
It was on the floor that i hurt myself after falling.为强调句
floor which was covered with water.可理解为插入修饰floor的语句