问题补充：
It is not unusual for workers in that region.
A. to be paid more than a month later
B. to be paid later than more a month
C. to pay later than a month more
D. to pay later more than a month
答案：
A. to be paid more than a month later
B. to be paid later than more a month
C. to pay later than a month more
D. to pay later more than a month
解析：workers和pay是被动关系；It is adj. for sb. to do sth. 为固定句型。more than 多于。
