There is no jam in the fridge.
There are some children in the park.
There is a lot of tea on the table. (допууустиим)
There is a book on the table.
There is some maps in the bag.
There are no children in that museum.
There are a lot of toys in that shop.
There are a lot of toys in that museum.
There are a lot of toys in the bag.
There are a lot of maps on the table.
There are a lot of maps in that museum.
There are some maps in the bag.
/я устала писать, и так много уже/