---Who broke the door?----Marry did. He admittedit.A. to breakB. to have brokenC. breaking

问题补充：

---Who broke the door?

----Marry did. He admittedit.

A. to break

B. to have broken

C. breaking

D. to be broken

答案：

A. to break

B. to have broken

(答案→)C. breaking

D. to be broken

解析：由admit doing 承认做过某事可知答案。