The man needed_,for one of his legs was badly injured.

问题描述:

The man needed_,for one of his legs was badly injured.
A,to look after B.looking after C.look after D,being looked after

B
need doing 需要被...
这里意思是 需要被照顾
所以就是 need looking after那D是什么时态啊? 那need to do又解释什么呢?