The Dog of His Dreams When cousins Dennis and Mellie decide to get a dog, they consider carefully what breed would be best for each family. For example, Dennis wants a big dog, but Mellie wants tiny. He has no other pets, but she has other pets that a dog must get along with. They consider different dog personalities, family situations, and personal preferences. Dennis writes an opinion essay for his teacher, Mrs. Shirky. But will his essay convince...