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By the end of last week 611 people from 49 countries( )to at

来源:学生作业帮 编辑:作业帮 分类:英语作业 时间:2024/07/19 08:58:09
By the end of last week 611 people from 49 countries( )to attend the meeting,with nearly
half coming from Germany.A.had registered.B.have registered.C.registered.D.were registered为什么选A不选B?
因为 By the end of last week 是过去的过去发生的事情,现在来陈述的话就只能用过去完成时.而B选项是现在完成时.