中国联通2017年战略:一道英语题

来源:百度文库 编辑:杭州交通信息网 时间:2024/05/12 17:10:56
It is said in the book that Thomas Edison(1847-1931)______the world leading inventor for 60 years.
A.would be B.has been
C.had been D.was
答案为D

C,从过去到现在结果一直在延伸,用过去完成时

c

C

c