The warm-hearted neighbor take care of the little girl when her parents were on business, and they appreciated it very much.
A. should
B. could
C. would
D. might
网友回答
A. should
B. could
(答案→)C. would
D. might
解析：考察其他动词用法。Would过去常常做某事；结合句意可知C正确。句意：当她的父母出差的时候，好心的邻居常常会照顾这个小女孩。