英语 哪种说法正确In the 1st to 2nd years (2009-2011),...还是From the 1st to 3rd years (2009-2011),...

英语 哪种说法正确In the 1st to 2nd years (2009-2011),...还是From the 1st to 3rd years (2009-2011),... 英语 1st 表示的是first 还是the first?in the 1st centry英语 1st 表示的是first 还是the first?in the 1st centry还是in 1st centry? in the 20st century对么?请问in the 20st century这个正确么?20st和20th哪个正确?还是都可以以? early in the morning是对的 哪early in the morning of 1st in the evening on October 1st in对吗 是in the morning of July 1st还是on the morning of July 1st? on the morning of March 31st与in the morning of March 31st都正确吗?这两个答案都正确吗?一套题的答案用的是ON,而英语辅导报上的答案是IN,哪个正确还是都正确? in the morning on September 1st这个短语对吗 英语 楼层的说法8F是the 8th Floor吗?B1呢?B1，the Basement 1st Floor。B2，the Basement 2nd Floor。不考究中西楼层的计算方法，只是探讨普通的口语翻译。例句：The displays in the museum span nearly 4 kilometers,with -When is the Nation Dayof the PRC?-It's________.A.on 1st October B.in 1st OctoberC.on 1st of the October D.in the 1st of October什么时候用in?什么时候用on? 求写一篇英语作文,名字《the advantages of living in the 21st century》 ---When is the National Day of the PRC? ---It's _____.A on 1st October B in 1st October C on the 1st of OctoberD in the 1st of October 英语日期表达方式的互换比如说“January 1st”能否写做“January the first”?如果不能,请说出正确的书面写法. She was born on/in October 1st请问用哪个介词正确? 一篇英语作文 《 life in the 21st century》60字左右 英语作文急急急 题目是Life in the 21st Century born in november 1st 下列哪种说法正确?