I'll never forget the days we spent together in England.A.whenB.in whichC./D.on
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I'll never forget the days ________ we spent together in England.
A.when
B.in which
C./
D.on which
试题答案
C
定语从句中spend没有宾语，因此引导词要代替先行词作其宾语，可以省略，答案是C。