问题
选择题
We have made _______great progress in the medical field, but ______ progress we have made is not enough.
A．a; a
B．a; the
C．/; the
D．/; /
答案
答案：C
冠词题。第一空短语make progress “取得进步”；第二空progress有定语修饰特指。 我们在化学领域取得了很大进步但这进步还不够。 选C