at house 不对,那at my house对吗,at my home呢

at house 不对,那at my house对吗,at my home呢 想问一下at home,at my house ,in my house,at house都对吗, at my house or ? at room?at home?at house? I ( )at my grandpa's house. You left them at my house The party is at my house为什么用at My name is Millie.My dream home is a big house at the top of You can dance at my house.dance划线① at my house划线② you can have your party at my house(对at my house提问） 我有一题是这样的——let's meet.A at home B at my home C at house D at My father ( ) soccer at my uncle's house.