加拿大大学经济学系:英语选择!

来源:百度文库 编辑:杭州交通信息网 时间:2024/05/06 05:16:01
Bill,when did you know the accident?
Well,I knew nothing about the accident_______I read in the newspaper a couple of days ago.
A.unless B.until C.when D.as

并说明理由!

B
not ....untill 是固定搭配
表示直到...才...
根据语境,应该选untill