the knife __he cut the bread is very sharp

题目

the knife __he cut the bread is very sharp
with which
with it
with that
which

答案

选A 这是个定语从句
the knife is very sharp 是主干
从句做knife 的定语,意思是 是哪把刀呢,哦,是他切面包的那把刀,he cut the bread with the knife