Question

поставить предложения в вопросительную и отрицательную форму.
there is a nice picture on the table.
there are a lot of postcards on the table.
there is a new computer in the room.
there are a lot of things in the pantry.

Answer 1

there isn't a nice picture on the table
is there a nice picture on a table?
there aren't a lot of....
are there a lot of...?
и так далее

Answer 2

Is there a nice picture on the table ?
There isn't a nice picture on the table .

Are there a lot of postcards on the table ?
There aren't a lot of postcards on the table .

Is there a new computer in the room ?
There isn't a new computer in the room.