第1个回答 2011-11-10
从来没有on the night
In + 月+ 年 or in + 月; or in + 年; In May,2011, In May, In 2011
at + 钟点 at one'o clock
On + 日子, On 3 May, 2011.
诀窍:
见了日子就用on, 没有日子就用in
第2个回答 2011-11-10
on 用在星期中,如on Sunday, on Monday.
in 用在季节,早上下午晚上,如in spring, in winter,in the morning, in the afternoon, in the evening
at用在具体的几点钟,如at 7 o'clock, at 7:30, at a quarter to nine.