I can never forget the day we worked together and the day we spent together.A. when; which

问题补充：

I can never forget the day we worked together and the day we spent together.

A. when; which

B. which; when

C. what; that

D. on which; when

答案：

(答案→)A. when; which

B. which; when

C. what; that

D. on which; when

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