three murders -------(happen)since the end of last year but

来源：学生作业帮编辑：搜搜做题作业网作业帮分类：英语作业时间：2024/04/28 02:24:23

three murders -------(happen)since the end of last year but l can't remember the murderers'
names

Three murders ---have happened----(happen)since the end of last year but l can't remember the murderers'.
自从去年年末起,已经发生了三件犯罪事件,但是我不记得了那些罪犯了.
since引导过去完成时.

I haven't heard from George (since the end of last year).(括号 the boy bought three pairs of shoes ever since last year（那里错 Not until the end of last year 和Until the end of last year 的 since the last of last year与什么时态连用 since the end of last years用什么时态 By the end of last year the railway___. the end of summer and the last year By the end of last year he______about 1500 English words. By the end of last year,another new subway__in shanghai. by the end of last year用于什么时态 The last three months of a year are ( ),( )and ( ). by the end of the last year ,the young man had (won this mat