Используя оборот there is/there are поставить в удтвердительную, вопросительную и отрицательную форму. Предложение: в нашем городе много старых домой.

There are a lot of old houses in our town.There aren`t a lot of old houses in our town.

There are a lot of old houses in our townAre there a lot of old houses in our town ?There aren't a lot of old houses in our town