The child is old enough to be independent______his parents.

问题描述:

The child is old enough to be independent______his parents.
A.of B.on C.upon D.to

A.of
注:be independent of 为固定搭配,意为独立于...摆脱于...不依靠于...
eg:Those who want to succeed must be independent of his shortcomings.
另有be dependent on 意为 依赖于...注意将其与be independent of 相区别