Teaching pronunciation class to a mixed group of learners can a teacher with many challen

网友回答

A. provide
B. produce
C. present
D. offer
解析：C
解析　provide，present，offer都有“提供”的意思。provide意思是“供给(某物)”；present则表示“呈现(某种状况)，使经历”；offer构成offer sb.sth.或offer sth.to sb.的结构。故C项符合句意。