问题补充:
He is very and he always explains things us.
A. impatient , to
B. impatient , with
C. patient , to
D. patient , for
答案:
A. impatient , to
B. impatient , with
(答案→)C. patient , to
D. patient , for
解析:impatient不耐烦的 patient耐心的,to到、给,for为了,我们是他解释的对象,通过句意,可知选项为C。