Поставьте во множественное число.
there is a bicycle near the tree.
there is a book on the table.
there is a sweet in the box.
there is a brid in the cage.
there is a pear on the dish.

There are bicycles near the tree.

There are books on the table.

There are sweets in the box.

There are birds in the cage.

There are pears on the dish.

There are bicycles near the trees.

There are books on the tables.

There are sweets in the boxes.

There are birds in the cages.

There are pears on the dishes.