I am not busy on Friday.on能替换for吗?

来源：学生作业帮编辑：神马作文网作业帮分类：英语作业时间：2024/11/12 00:43:16

不能,on可表示具体的某一天或某一天的早上、中午、晚上等,而for是表示一段时间.
时间介词用法：
1、at 强调时间上的某一点,例如：at ten o’clock 十点 at noon=at 12:00 正午十二点 at night 夜晚
2、in 表示某一段时间,指天、年、月、季节、周次等,例如：in Jan.一月 in 2010 2010年 in Spring 春季
3、in the morning 早上 in the afternoon 下午 in the evening 傍晚
4、on 用来特指几月几号,星期几,或是某一天的上下午,例如：on Sunday 星期日 on Monday morning 星期一上午
5、for表示时间段,例如：for two weeks 2周 for a year 一年

I am not busy on Friday.on能替换for吗? I am very busy on Friday.(改为一般疑问句） I am very busy on Friday At 8;00I have math I it is not fun 英语翻译I am very busy on Friday.At 8:00 I have math.It is not f I am not busy on Saturday.(改为同义句) Dear I am very busy on Friday.At 8:00 I ha 英语翻译Dear Jenny,I am very busy on Friday.At 8:00 I have math. i am having a surprise party for lana on Friday night中为什么是am 英语填单词really,am,i,busy,friday,on连词成句your,who,english,is,teach I am very busy on Tuesday,改为单数第三人称 I will feel happy for you,but I am not going to show up on y I&#39;m very busy on the afternoon of Friday.错哪里了?