Điền từ thích hợp

điền in, on, at :
1. I've got a computer ... my bedroom.
2. Do you live ... a house or an apartment ?
3. He is sitting ... a sofa ... hat the corner of the sitting room.
4. There is  such a mess ... the kitchen !
5. The dog is sleeping ... the carpet.
6. We live ... the 3rd floor ... 53 Pine Street ... London.
7. Jane is waiting for a bus ... the bus stop.
8. Are there any pictures ... the walls ... the living room ?
9. We are staying ... the Roosevelt Hotel ... New York City.
10. My camera is ... a shelf ... the bedroom closet.