Question

【题目】 It _______ ten years since my sister ______ an English teacher.

A. has been, is B. is, became

C. have been, was D. is ,has become

Answer 1

【答案】B

【解析】

试题分析：句意：自从我的妹妹成为一名英语老师已经十年了。it is / has been +一段时间 since+过去时态的句子。自从……已经多久了。故选B。