Ответ:
Перед существительным в единственном числе употребляем There's, во множественном — There are. Предмет находится in в комнате и обычно on на поверхности.
- There are two girls in the bedroom.
- There's a clock in the kitchen.
- There are two doors in the living room.
- There's a picture on the wall.
- There are three windows in the bathroom.
- There are two beds in the bedroom.
- There's a bag on the floor.
- There are three boys in the living room.
- There's a book on the table.
- There's a camera on the table.
- There are board games in the dining room.
