问题
选择题
. She makes _______ effort to learn maths and she has made _______ great progress in it.
A．an ; a
B．/ ; a
C．the ; /
D．an ; /
答案
答案：D
考查冠词。第一空为固定短语：make an effort to to努力做某事，第二空，progress 进步，为不可数名词，所以前不加冠词，故选D。