Mary borrowed the book two years ago.(同义句转换)
问题描述：
Mary borrowed the book two years ago.(同义句转换)
It _____ two weeks _____ Mary _____ the book.
顺便请教一下类似的同义句应该怎么变,
答
It is two weeks since Mary borrowed the book.
玛丽两年前借的书 就是说,自从玛丽借这本书起,已经过去两年了.
类似的就是It is +时间段+since+原句的主谓宾