I'll never forget the happpy days_we spent together.A.with whichB.in whichC.when D./
问题描述：
I'll never forget the happpy days_we spent together.
A.with which
B.in which
C.when
D./
答
D
后面可以填 which , that，但是可以省略，这里只有D满足
答
C宾语从句
答
D
spent及物动词，直接加宾语，故变为定语从句时可以用which , that，也可以省略。但不能加借词。所以选D
答
D
这里是定语从句,which,that,不填都可以
答
D
spend可以直接加时间,表示花费多长时间做某事,不用加介词.这里是度过的意思.
这是个定语从句,用that或which引导（that/which可以省略）,不能用介词,故不选AB,when＝in which,故也不选C