Some people don’t known the value of their health they lost it.A. afterB. whenC. untilD. a

问题补充：

Some people don’t known the value of their health they lost it.

A. after

B. when

C. until

D. as

答案：

A. after

B. when

(答案→)C. until

D. as

解析：句意：一些人们不知道健康的价值直到他们失去生命。Not …..until 直到……才故选C