After he became conscious，he remembered and on the head with a rod.
A.to attack;hit B.to be attacked;to be hit
C.attacking;be hit D.having been attacked;hit
After he became conscious，he remembered and on the head with a rod.
A.to attack;hit B.to be attacked;to be hit
C.attacking;be hit D.having been attacked;hit
D
考查动词的具体用法。remember to do sth.记着要做某事（此事未做）；remember doing sth.记着做了某事（事已完成）。因为he与attack和hit之间是动宾关系，应用被动语态。