Jack is late again.It is of him to keep others waiting.
A. normal
B. typical
C. mon
D. ordinary
网友回答
A. normal
(答案→)B. typical
C. mon
D. ordinary
解析：考查A.normal正常的，B.t ypical典型的C.mon普通的，D.ordinary普通的，句型： It's typical of sb to do，某人做…是常有的事，句意：杰克有迟到了，让别人等是他常作的事。选B。