问题
选择题
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
答案：B
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。