I feel that one of my main duties ________ a teacher is to help the students to become better learners．

1. A.
   for
2. B.
   by
3. C.
   as
4. D.
   with

I feel that one of my main duties _______ a teacher is to help the students to become better learners.?

A. for B. by?

C. as D. with?

I feel that one of my main duties _____ a teacher is to help the students to become better learners.

　A. for          B. by         C. with     D. as            

I feel that one of my main duties ______ a teacher is to help the students to become better learners

A. for            B. by           C. as             D. with