a year ago和last year有没有区别,如果有的话,请讲出两个词组的用法.谢谢

a year ago和last year有没有区别,如果有的话,请讲出两个词组的用法.谢谢 half a year ago. last year=one year ago 去年.一年前? A Year Ago Today 歌词 A Year Ago Today 歌词 previous year和last year的区别 I have tried it _____.A.ladt year B.once C.five days ago D.neverA.last year 英语中前年怎么表示?Two year ago?The year before last year? Our foreign teacher has travelled to five cities in China------ .A last year B a year ago C nest yer D this year My uncle went to Australia last year.We haven't seen him ____.A.since almost a year B.from almost a year onC.after almost a year D.since almost a year ago 为什么 My uncle went to Australia last year.We haven't see him____.A.since almost a year B.from almost a year C.after almost a year D.since almost a year ago望好心人能顺便说明解题原因, last year for 和sincefor 后面跟时间段,而since加时间点.刚才做题是这样的.my uncle went to china last year,we have not seen him A for almost a year b from almost a year on c from almost a year d since almost a year ago答案为啥是D啊. They_on the farm a moment ago.Yang ling_eleven years old last year. Mrs.Li has never been to Japan .A.until B.last year C.ago D.before at last year和in last year.有什么不同 last year ago today and I y is last year和next year用法上的区别是什么?