有么有人可以帮我找一下两句英文句型的例句？
It is +时间段+since...
It's + 时间段+since...
或者有人愿不愿意告诉我这两句句子有什么区别？
参考答案:It is four years since we left the school.
It's four years since we left the school.
没有什么区别，只是第二句的It's 除了表示It is 还表示It has
比如
It's been four years since she was married.