a few years ago前为什么不加介词inin a few years ago错在哪里.

a few years ago前为什么不加介词inin a few years ago错在哪里. a few hundred years ago The airport was built years agoyears ago前为什么不加数量单位或“few”一类的词 every few years 中,few前为什么不加“a”?我的意思是：为什么不写成every a few years 为什么a few minutes ago的few前要加a?不要只说few,关键是a few minutes ago的few前为什么要加a he was died a few years ago和he died a few years ago这两句话哪句是对的,为什么, a few years ago与 few years ago的区别和对错 A modern city has been set up in ____ was a wasteland a few years ago.A what B which为什么B不可以啊 Is this factory you visited a few years ago A the one B that C where 为什么选A不选B A HUNDRED YEARS AGO这个表达对吗?A FEW YEARS AGO呢? a few years back 和a few years ago啥区别大神们帮帮忙 the old man died______.A.for a few years B.since a few years C.a few years ago D.a few years bridges,few,there,ago,were,a,50,years 翻译：after his father's death a few years ago. I_tennis.I stopped playing a few years ago. she was very p___ammong the students a few years ago a few days ago为什么用a few he said that he ```` to canada a few years ago a had been to b have been to c went d 老实说选a 为什么不能用went 还有 to to 不是多了一个to吗?