The young man is Edison in our factory and he has made number of important inventions over the years.
A. an; the
B. an; a
C. \; the
D. \; a
网友回答
A. an; the
(答案→)B. an; a
C. \; the
D. \; a
解析：考查冠词，人名前面加不定冠词，表示一个象…的人，第二空填a，词组a number of“许多”，句意是：年轻人是我们厂的爱迪生，这么多年他发明了很多重要的东西。选B。