The teacher apologized late．
A. to his students to arrive
B. to his students for arriving
C. at his students to arrive
D. at his students for arriving
网友回答
A. to his students to arrive
(答案→)B. to his students for arriving
C. at his students to arrive
D. at his students for arriving
解析：考查固定搭配。固定搭配apologize to sb for sth/doing sth因为某事/做某事向某人道歉。句意：这个老师因为迟到向他的学生道歉。故B正确。