I can never forget the days _____ we worked together and the days _____ we spent together.A. when; which B. which; when C. what; that D when; when
They did not buy ___ milk.
.Everybody must have ___ own choice.
One of them hasn't prepared __ lessons very well.
One should wash ___ hands before meals.
Under the leadership of the Party, we have won one victory ___.