When were you born?

题目

When were you born?
I was born on Febuary 19th 2003.
When is you birthday?
It’s February 19th.
我想问问,为什么 born 后要加上介词 on,而It’s后面的on却可有可无?

答案

嗨,这么简单.明白简单的告诉你：
翻译：When were you born?你是在什么时候出生的?
既然问在什么时候,就要说I was born on Febuary 19th 2003.我出生在2003.219.要用“在”
When is you birthday?你的生日是几号?就应说It’s February 19th.
他是2.19就用不着加“在”!