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 为什么?

问题描述:

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 为什么?