___________ a bicycle.
There is
_________ children swimming.
There aren't
____________ an umbrella.
There is
____________ two cars in the town.
There aren't
________ trees in the forest.
There are
_________ a lake in the forest.
There isn't
_________ two cats in the park.
There aren't
_________ two dogs playing.
There aren't
_________ a mountain in the field.
There isn't
___________ a man on the house.
There isn't
_________ four people walking.
There are
________ houses in the beach.
There aren't
__________ clouds above the houses.
There are
_________ a house at the bottom.
There is