In recent years,with the help of our teacher,I have made __ rapid progress in __ math.

题目

In recent years,with the help of our teacher,I have made __ rapid progress in __ math.
A.a;the B.a;不填 C.不填;the D.不填;不填
为什么选D

答案

progress是抽象名词,不可数,零冠词+不可数名词表类指
math是学科,前面使用零冠词