He is very and he always explains things us.A. impatient toB. impatient withC. patient

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。