问题
选择题
China’s economic development has made ______ rapid progress in the past 20 years and young people have made ______ great contribution to this progress.
A． /; a
B． the; a
C． a; a
D． /; /
答案
答案：A
考查冠词。make rapid progress取得迅速的进步；make a great contribution to做出巨大的贡献。根据句意选A。