题目内容：

That is kind ___ the old man.填介词
to of for with 待选!

优质解答

for be kind to sb对某人很好My mother is kind to all the children in the neighbourhood.be kind of sb是指这个人很好 It is kind of you to say so.而这里选择for 是因为主语是that,不是人,而是一件事...