Rewrite the following sentences, using the possesive case of the undelined nouns. 1. tracy has read the replies of the readers. 2. the story of martha, the last passenger pigeon, teaches us a lesson. 3. a century ago the natural habitat of passenger pigeons was large forest in north america. 4. have you read the survey about zoos by rachel and trevor in the rap? 5. the photos of animals taken by children were fantastic.