一、四句同义句
1.Mart's aunt lives in ShenYang.She moved there ten years ago.
=Mart's aunt has lived in Shenyang for ten years.
=Mart's aunt has lived in Shenyang since ten years ago.
=It's ten years since Mart's aunt moved to Shenyang.
=Ten years has passed since Mart's aunt moved to Shenyang.
2.The young man started work here four and a half mouths ago.
=The young man has worked here for four and a half months.
=The young man has worked here since four and a half months ago.
=It's four and a half years since the young man started work here.
=Four and a half months has passed since the young man started work here.
3.Mr.Li bought the house the year before last year.
=Mr.Li has had the house for two years.
=Mr.Li has had the house since two years ago.
=It's two years since Mr.Li bought the house.
=Two years has passed since Mr.Li bought the house.
二、三句同义句
1.I last saw the movie in 1997.(改三句同义句）
=I haven't seen the movie since 1997.
=I saw the movie in 1997 for the last time.
=The year 1997 was the last time when I last saw the movie.
三、一句同义句
2.I haven't walked along the river for ages.(改一句同义句）
=I last walked along the rive ages ago.