on the room,还是at the room

on the room,还是at the room on the top 还是at the top on the school还是at the school at the street还是on the street? on the basketball court 还是at on the basketball court across the room 还是throngh the room? the room 308还是the 308 room The computer room is ( ) the building. on at in 选一个介词填空 The computer room is ( ) the first floor选择题1(on) 2(at) 3(in) 连词成句(英语)：heating|the|wasn't|,|Although|.|room|on|was|the|warm|at all| “______ you give me a room for the night?” I asked on arriving at the hote “______ you give me a room for the night?” I asked on arriving at the hote 是at the pool还是for the pool还是 to the pool 还是on the pool at the first floor还是on the first floor 是on the crossing还是at the crossing at the second floor 还是on the second floor 是on the table还是at the table同上 是knocked at the door还是knocked on the door