题干
Mr. Black is always patient _____ us students and guides us ______ a lot better in math.
A：in, to do
B：at, doing
C：with, to do
D：to, doing
答案(点此获取答案解析）
C
Mr. Black is always patient _____ us students and guides us ______ a lot better in math.
A：in, to do
B：at, doing
C：with, to do
D：to, doing
，它属于