Ответ:
Отрицательные:
Coffee is not grown in warm countries.
Books are not made of paper.
Gold is not found in rivers.
Rings are not usually made of metal.
This bridge is not made of stone.
Вопросительные:
Is the coffee is grown in warm countries?
Are books made of paper?
Is there gold in the rivers?
Are rings usually made of metal?
Is this bridge made of stone?