Выберите нужный предлог. образец: there is piano in / on / at the room 1)there are two desks next to / in / on the window 2)there is no pantry on / in / at his flat 3)there is a nice carpet at / on / in the floor 4)i share a large room of / from / with my brother 5)there are many interesting books at / on / in the shelf