问题补充:
单选题Eversincethefinancialcrisis________,manyworkers_______fromtheirjobs.A.broke out; were laid offB.has broken out; were laid offC.had broken out; had been laid offD.broke out; have been laid off
答案:
D解析这题考查时态的用法,因为是since引导的时间状语从句,所以第一空填过去时,主句用现在完成时。句意是:自从经济危机爆发,很多工人被解雇了。选D。