1.1.There is nothing in the bridge, is there?
2.Is there anything in the bridge?
3.What is there in the bridge?
2.1.There is nothing interesting in that book, is there?
2.Is there anything interesting in that book?
3.What is interesting in that book?
31.There`s no hot water in their houses this winter, is there?
2.Is there any hot water in their houses this winter?
3.Where is no hot water this winter?