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？
參考答案: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.
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？
參考答案: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.