Question

It was until last year that he ___________.

A．left his hometown for a new start

B．came to realize the important of learning English

C．worked as an English teacher at a middle school

D．set out to build a new house of his town

Answer 1

C

解析试题分析：句意为：直到去年他还在一所中学当英语教师。这是个强调句型. 它的特点是去掉it is/was和that后是个完整的句子。until句型要求前面的谓语动词必须是延续性动词,也就是说它翻译成"某动作一直延续到某个时刻,那个时刻以后就不再延续了"，综合ABCD四个答案，只有C work可以延续。故选C。
考点：考查强调句型。