Mr Li is kind _____ us,but sometimes he is kind _____ serious.

问题描述:

Mr Li is kind _____ us,but sometimes he is kind _____ serious.
A.to;of
B.with;to
c.of;to
d.with;of

A
be kind to sb,对某人很好
kind of 某种类的人,有点儿.
李先生对我们很好,但有时候他有点严厉.