问题
选择题
—You know，Bob is a little slow ________understanding.
—So I have to be patient________him.
A．in；with
B．on；with
C．in；to
D．at；for
答案
答案：A
A [考查介词搭配。 be slow in doing...意为“在……方面反应迟钝”，be patient with sb意为“对某人有耐心”。]