Mr. Mao, who as a construction worker for over 8 years, is now a distinguished lawyer in this country.
A. has worked
B. had worked
C. worked
D. has been working
网友回答
A. has worked
B. had worked
(答案→)C. worked
D. has been working
解析：句意：毛先生，曾经作为一名建筑工人工作了8年，现在是这个国家著名的律师。表示发生在过去的事情，故用一般过去时，选C。