It’s not until you have lost your health you always take for granted you know its value.

问题补充：

It’s not until you have lost your health you always take for granted you know its value.

A. that; which

B. it; that

C. which; that

D. which; which

答案：

A. that; which

B. it; that

(答案→)C. which; that

D. which; which

解析：整体为强调句型。take … for granted意为“对……不予重视；认为……是理所当然的”。句中you always take for granted是定语从句，修饰health。