是in the corner of the room还是at the corner of the room?是at th

in the corner of the room The TV set stands__the corner of the room.A)in B)at C)on There isa ball()the corner ()the room A .at,in B .to,of C.on _____the corner of the room stands his sister.A.At B.On C.In Did you notice the__girl in the corner of the room? I found her sad and seated at the corner of the room,______f there is a bed __at_ the corner of the room,为什么用介词at at the corner in the corner on the corner 请求说明in the corner of、on the corner of、at the corner of的区别,重点 是in the corner of还是on the corner of(在某地的角落里) 初中来讲：in the corner of和at the corner of有什么区别吗? in the corner of 与 at the corner of 有什么区别?