问题补充：
With the help of the teachers and classmates, the boy worked hard and finally caught up with his classmates. Now he is all the others.
A. as a good student as
B. as a student good as
C. as good a student as
D. as good as a student
答案：
A. as a good student as
B. as a student good as
(答案→)C. as good a student as
D. as good as a student
解析： 考查固定结构。A is as +adj.+a/an+n.+as+B表示A是和B一样好的。。。所以选C。
