`1`/

`(-)`There isn't a big bottle on the table

`(?)` Is there a big bottle on the table?

`2`/

`(-)` There aren't many chairs in the living room.

`(?)` Are there many chairs in the living room?

`3`/

`(-)` There aren't `4` cats and dog in my house.

`(?)` Are there `4` cats and dog in my house.

`5`/

`(-)` There isn't an ice-cream in the fridge

`(?)` Is there an ice-cream in the fridge ?

`6`/

`(-)` There aren't some children in the yard.  

`(?)` Are there some children in the yard ?

`7`/

`(-)` There isn't a laptop, a mouse and two pens in my bag.

`(?)` Is there a laptop, a mouse and two pens in my bag ?

`8`/

`(-)` There aren't many quiz programs on TV last night. 

`(?)` Are there many quiz programs on TV last night ?

`9`/

`(-)` There isn't a theater near her house.

`(?)` Is there a theater near her house ?

`10`/

`(-)` There aren't many fans in the room.

`(?)` Are there many fans in the room ?

`=>` Công thức câu tobe 

`(+)` S + to be ( am / is / are ) + .......

`(-)` S + to be ( am / is / are ) + not + .......

`(?)` To be + S + ........ ?

I + am / am not

he, she, it + is / isn't 

You, we, they + are / aren't