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.
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.