John didn’t give up looking for a job_______he got an offer from

John didn’t give up looking for a job_______he got an offer from a German company.
A、until
B、since
C、because
D、if
【正确答案】：A
【题目解析】：试题分析：until知道；since由于，自从……以来；because因为；If是否，如果。句意：约翰一直没有停止找工作，直到它在一家德国公司得到一个职位。短语not……until……，直到……才，故选A