____ that time he has worked as a translator.A since B by C before D at选什么 为什么

问题描述:

____ that time he has worked as a translator.
A since B by C before D at
选什么 为什么

A与完成时搭配。从那时开始,他就做翻译工作了。

A
打那时起,他就一直做翻译工作.