I have a sharp knife in my drawer, protect myself when I work at night．A.on whic
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I have a sharp knife in my drawer, ________ protect myself when I work at night．
A.on which to
B.on that to
C.with that to
D.with which to
试题答案
D
“介词+which+动词不定式”作定语，这种短语只能使用代词which，不能使用其他代词。