The headmaster asked the boy to apologize the teacher what he had done but he refused t

问题补充：

The headmaster asked the boy to apologize the teacher what he had done, but he refused to.

A. for; for

B. to; to

C. for; to

D. to; for

答案：

A. for; for

B. to; to

C. for; to

(答案→)D. to; for

解析：apologize to sb. for sth.是固定用法，意思是因为某事向某人道歉，故选D。