The old man needs a stick more steadily.A. to walk to walkB. walking walkingC. walking

问题补充：

The old man needs a stick more steadily.

A. to walk, to walk

B. walking, walking

C. walking, to walk

D. to walk, walking

答案：

A. to walk, to walk

B. walking, walking

(答案→)C. walking, to walk

D. to walk, walking

解析：本题的含义是那个老人需要一个拐杖才可以走得更稳，walking stick可以表示拐杖的意思，需要某物做某事可用need sth to do，故本题选C。