Jack is late again. It isof him to keep others waiting.A. typicalB. commonC. ordinary D. n

问题补充：

Jack is late again. It isof him to keep others waiting.

A. typical

B. common

C. ordinary

D. normal

答案：

(答案→)A. typical

B. common

C. ordinary

D. normal

解析：It is typical of sb to do sth做某事是某人的风格。句意：杰克又迟到了，他总是让别人等他。