I was born ________January 15th.

问题描述:

I was born ________January 15th.
I was born ________1998.
I was born ________April.

I was born on January 15th ,具体某一天要用on
I was born in 1998 ,某一年,要用in
I was born in April 某一月,要用in
你可以这么理解,只要是具体的一天,就要用on,像月份,年份这类的不只到具体是在哪一天的,就用in