True friendship is like sound health the value is seldom known until it is lost.A. from

问题补充：

True friendship is like sound health, the value is seldom known until it is lost.

A. from which

B. which

C. of which

D. whose

答案：

A. from which

B. which

(答案→)C. of which

D. whose

解析：定语从句考查题。先行词health，关系词which做of的宾语。 友谊像健康一样直到失去才知道它的珍贵。