important for children on themselves.A. That`s; to dependB. It`s; to dependC. That`s; d

问题补充：

important for children on themselves.

A. That`s; to depend

B. It`s; to depend

C. That`s; depending

D. It`s; depending

答案：

A. That`s; to depend

(答案→)B. It`s; to depend

C. That`s; depending

D. It`s; depending

解析：句意：对于孩子们来说依靠自己很重要。It’s +adj. for sb. to do sth..是一个固定句型，意思是“对于某人来说做某事很……。”it是形式主语，真正的主语是不定式，故选B。