在某地放做标记是make a mark in还是at

在某地放做标记是make a mark in还是at make mark on 还是make a mark on,那个说法是正确的,还是两个都是正确.请相关人士给出肯定答案, 在远处是in the distance还是at a distance? 英语left in把东西落在某地使用in还是at?（比如图书馆）为什么a library算大地点？ you'd better make a mark at which you have any questions.为什么 When you read the book,you'd better make a mark at the spot 到底是make a mistake on spelling还是make a mistake in spelling 在酒吧是该用in a public house还是用at 是in the corner of还是on the corner of(在某地的角落里) 是at a low price 还是in a low price 是sit in a chair还是at a chair 是“in”a welcome party还是“at”a welcome party?