In 1982 the median income for married-couple families with a wage-earning wife was $9,000 more than a family where the husband only was employed.
(A)a family where the husband only
(B)of a family where only the husband
(C)that for families in which only the husband
(D)a family in which only the husband
(E)those of families in which the husband only
Ans:C
答案C中that後面接的?