A little girl is shopping in a grocery store when--surprise!--she meets a dinosaur. Don't worry. The dinosaur is very friendly. She's polite, too. In this funny story, told in lilting read-aloud rhyme, the girl has numerous opportunities to be helpful to the clumsy shopping dino and demonstrate when to say "thank you," "excuse me," "I'm sorry," "You're welcome," and other niceties of life. Tim …