Girls used to take fewer advanced math courses than boys but now they are taking just .
A. as much
B. so much
C. as many
D. so many
网友回答
A. as much
B. so much
(答案→)C. as many
D. so many
解析：本句可改写为：Girls used to take fewer advanced math courses than boys but now they are taking just as many courses as boys.本句是一个省略句，courses as boys被省略。句意：女孩子过去比男孩子选较少的课程，而现在他们学习相同的数学课程。故选C。