I've worked in this school _ twenty years.[ ]A. since B. for C. afterD. when-九年级英语

题目简介

I've worked in this school _ twenty years.[ ]A. since B. for C. afterD. when-九年级英语

题目详情

I've worked in this school         _ twenty years.
[     ]
A. since      
B. for      
C. after      
D. when
题型:单选题难度:中档来源:同步题

答案

B

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