请问house前的介词用in还是atHe would try his best to be arrive ____ his house.

请问house前的介词用in还是atHe would try his best to be arrive ____ his house. 沙滩的英文单词前介词用in还是用on vacation前的介词用on还是in? thanksgiving day前的介词用at 还是in? pavement前用介词on 还是in? my house前用什么介词急 年份前用介词什么?月份前用介词什么?日子前用介词什么?是on还是in? “basketball court” 前用什么介词?in还是on? vacation 前用什么介词?是in?还是on? September,1999前介词用on还是in university前用什么介词?at还是in? May 21st前用介词on还是in? 英语中,“具体的某一天”前用介词in还是on? meeting前用的介词是on,at还是in? 求助! lake前的介词用in 还是 on 为什么?请详细回答,我们要月考了. a cold night前的介词到底是用in还是at还是on?那为什么可以说in the evening? 在酒吧是该用in a public house还是用at该用哪个介词 train前加什么介词trainbuscarcoachplaneship这些交通工具前加什么介词~别说用by我是说加in还是on诸如此类介词....用by是个学英语的都知道！我是说用in还是on