in, at, on, for的用法区别

问题描述

The teacher asked the students to practise their English ______ Jim, who is from London.

A. in      B. at      C. on       D. for

答案是 C，但不明白，请老师解释，谢谢！

老师答疑

沅老师：

practise sth on sb 是固定搭配，意思是“跟着某人练习……”。又如：

Can I practise my French on you? 我可以跟你练习法语吗？

Everybody wants to practise their English on me. 大伙儿都想跟我练习英语。