问题补充:
China has developed rapidly since 1978.
A. has a rapid development
B. has made rapid progress
C. has a great change
D. has made a rapid progress
答案:
A. has a rapid development
(答案→)B. has made rapid progress
C. has a great change
D. has made a rapid progress
解析:progress是不可数名词,其前不可用冠词,排除答案D;句中有时间状语since 1978,该用现在完成时,排除答案A、C,故选B:自1978来中国已经取得了长足的进步。