One of my sock____here.Where's ____?A.are;another B.are;the other C.is;other one D.is;the other

问题描述:

One of my sock____here.Where's ____?A.are;another B.are;the other C.is;other one D.is;the other
八点半之前

应该选D.
One of my sock做主语,为单数,应该用is.