JANUARY 用IN还是ON

JANUARY 用IN还是ON January.1699前面用in,还是on 是On January还是In January On January 2011对吗?是用on 还是in? 是on January,2010还是in January,2010? 是In January 1,1999还是On January 1,1999 月份前用的是什么 介词 in 还是 onI was born on January eleventh.It's so cold in January. my brother was born （ ） the morning of January 1 用in还是on? His birthday is-----------------january,中间是in还是on, in stock on january 16, 英语翻译应该是In 1943 January还是In January ,1943 为什么? 英语翻译如果说要翻译 在一月一日早上是用in the morning of the 1st of January 呢,还是用on the morning of the 1st of January The first month_____ a year is January.是用 in 还是of?还是两者都可以? in january还是on?还有My family usually clean(clean要不要加s,为什么)the house. on January还是in January,前面用什么借此,还有就是年份（如new year、2009年）前面用什么借词,时间（如8 o'clock）前面用什么借词,星期几（Monday）前面用什么借词,还有at和in、on怎么区分?具体点! He was _____ on january 27th ,1756,in Austria. 一句话：The best time to visit China is (in January还是January)帮帮忙 Spring Festival is in January是对还是错?