It was until last year hat he ________.

It was until last year hat he ________.
A、left his home town for a new start
B、came to realize the importance of learning English
C、worked as an English teacher at a middle school
D、set out to build a new house of his own
【正确答案】：C
【题目解析】：直到去年，他才在一所中学当英语老师。