①It has been three months since he left his home(同义句)
( Three ) (months ) ( has ) ( passed ) ( since) he left home.
②I borrowed the book a week ago.(同义句)
It ( is ) a week ( since ) i ( borrowed ) the book.
①It has been three months since he left his home(同义句)
( Three ) (months ) ( has ) ( passed ) ( since) he left home.
②I borrowed the book a week ago.(同义句)
It ( is ) a week ( since ) i ( borrowed ) the book.