你父亲什么时候开始从事教学工作的？

When _____ your father ______ ___ start to did work on teaching?

youdao

五年前他开始从事英语教学工作。

He English teaching five years ago.

youdao

从1980年开始，从事武术教学工作，至今培训学员上万名，带队参加各级武术比赛荣获冠军28次。

Since 1980, engaged in teaching martial arts, has trained tens of thousands of students, led to participate in all levels of martial arts competition won the championship 28 times.

youdao