There is / there are

"?"

100

______ a spider in the bathroom?

Is there a spider in the bathroom? 

200

________ two armchairs in the living room?

Are there two armchairs in the living room?

"-"

100

______ a mouse in the classroom.

There isn't a mouse in the classroom. 

200

________ three TVs in the house.

There aren't three TVs in the house.

mistake

100

There aren’t a clock on the desk.

There isn’t a clock on the desk.

200

There is five hats in the wardrobe.

There are five hats in the wardrobe.