题干
It was sad to me that they,so poor themselves, bring me food.
A：might
B：would
C：should
D：could
答案(点此获取答案解析）
C
It was sad to me that they,so poor themselves, bring me food.
A：might
B：would
C：should
D：could
,则使
成立的一个充分不必要条件是（ ）
