after he woke up,he found himself---- by a group of young vi

after he woke up,he found himself____ by a group of young villagers.A.being surrounding B.surrouding C.surrounded D.being surrounded选了C,但是另一题：when he awoke,he found himself______ by an old woman.A.being surrounding B.surrouding C.surrounded D.being surrounded却选了D,为什么不一样?