After he became conscious he remembered and on the head with s rod.A. to attack; hitB.

问题补充：

After he became conscious, he remembered and on the head with s rod.

A. to attack; hit

B. to be attacked; to be hit

C. attacking; be hit

D. having been attacked; hit

答案：

A. to attack; hit

B. to be attacked; to be hit

C. attacking; be hit

(答案→)D. having been attacked; hit

解析：表示记得做过的事，remember后要接动名词，不接不定式，据此可排除A和B; 再根据主语与动词attack为被动关系，故要用被动式，可排除C。第二空的hit是与前面的attacked并列，故用过去分词。