定语从句的连接词能不能删掉?

题目

定语从句的连接词能不能删掉?
好像是不行的吧?那个连接词在从句中也担任成分啊..
但是我有本练习书里有句：“the dog has made the floor you just cleaned dirty.”译为：”一只狗把你刚刚清洁过的地板弄脏了“那么这个句子的连接词哪里去了?

答案

主干是 the dog has made the floor dirty. you just cleaned是定语从句,对floor进行修饰,只不过floor在定语从句中充当宾语,所以可以省略.
补充完整就是 the dog has made the floor（which/that)you just cleand dirty.