---The excellent student is said in Germany last year .
--- No wonder he has a good mand of German .
A. to study
B. to be studying
C. to have studied
D. studied
网友回答
A. to study
B. to be studying
(答案→)C. to have studied
D. studied
解析：考查句型：Sb/sth is said to have done表示不定式的动作先于主句的动作用不定式的完成时，句意是：这个优秀的学生去年据说在德国学习的。--难怪他的德语这么好。选C。