I hope that the little _____ I have been able to do does good to them all.A.which B.where C.when

题目

I hope that the little _____ I have been able to do does good to them all.A.which B.where C.when
I hope that the little _____ I have been able to do does good to them all.
A.which B.where C.when D.what
这里的little到底是名词还是形容词啊?I have been able to do是否为这个句子的插入语?（要有解题思路）
好吧我错了，其实是A.which B.what C.that D.when``````
打字的时候不小心把上一题的选项写上去了···

答案