Every family in America has had this sort of experiencethere was a price increase of nearl

问题补充：

Every family in America has had this sort of experiencethere was a price increase of nearly one-third in the past two years

A. that

B. which

C. what

D. when

答案：

(答案→)A. that

B. which

C. what

D. when

解析：that引导同位语从句。