His father, who is said to be teaching in Australia, in Nanjing University for more than 10 years.
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：根据上文他的父亲，据说在澳大利亚任教，可知下文叙述的是过去发生的事情，故句子用过去时态，选C。