问题补充：
Though I am improving in my study, I still have a long way to go some of my classmates.
A. to compare with
B. to compare to
C. compared with
D. comparing with
答案：
A. to compare with
B. to compare to
(答案→)C. compared with
D. comparing with
解析：考查固定用法。动词compare有3个用法：compare sth with sth把…与…进行比较；compare sth to sth把…比作…；固定搭配compared with/to…与…相比（在句中单独做状语）；句意：尽管在学习方面我正在提高，但是和我的同学相比较，我还有很长的路要走。故C正确。
