Выбери нужный предлог. Example: There is a picture( on / in / at) the wall. 1)There are a lot( from / of / on )books

1) There is a picture on the wall. 2) There are a lot of books on the shelf. 3) There are chairs at the wall. 4) There is a pantry in his flat. 5) There is a new carpet on the floor. 6) I share a big room with my brother. 7) Have you got a player of your own?