问要表达几月几日的下午用介词in 还是on.如题:in the afternoon of ...

问要表达几月几日的下午用介词in 还是on.如题:in the afternoon of ... 在具体的某月某日的下午或者早上,介词用in还是用on.例如___ the afternoon of october 21 在下午是用in the afternoon还是on the afternoon? 英语翻译介词是用on the tomorrow afternoon还是in the tomorrow afternoon in the afternoon of Friday还是on Friday afternoon ___Sunday afternoon（在星期天下午）前面加什么介词?是in还是on? saturday afternoon前面用什么介词?on还是in? the afternoon of Monday前应该写in还是on 英语介词in、on等,怎么用?如：in the moring还是on the moring? in the afternoon on this Friday这么表达这个星期五下午对吗 是in the afternoon of April 30th 还是 on the afternoon of April 应该是in the afternoon of July 11,还是on the afternoon of July 11