问题
选择题
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
答案：C
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。