the first day at school是什么意思

the first day at school是什么意思 on the first day还是in the first day还是at the first? the first day 和at the first day有什么区别吗?写文章是,是用the first day 还是at the first day做开头? 翻译on his very first day at the factory 应该说on the first day还是at the first day能否仔细讲解一下on和at的用法,1 Today is（ ）day at school.A.first B.the my first C.my first D.my the first at the first time,for the first time,on the first day有什么区别呢?at the first time,for the first time,on the first day有什么区别呢?请举例说明, the first day of ONE RAINY DAY,GO HOME,BY TAXI,IN THE CAR,FIND,LEARN ENGLISH,SAID TO LILI,WEAK,ENGLISH,WHEN,AT SCH作文 the first day of the at the first crossing _ the first day of the festival(填in,on,at) what was the most impressive event that happened to you on the first day at college? 有没有in the first day,on the first day on the first day还是in the first day the first day _ school the first day的汉语 May day is not in March.It's ( ) May the first.用in on at 填空