Complete the following sentences according to the text. 1. Who was Jack? Jack was _______________. 2. When did Jack hit upon the idea of decorating the cab? Jack hit on the idea when __________________________________________. 3. When did Jack begin to try out his idea? He tried out his idea _____________________________. 4. When did Jack put up reproductions of great paintings? He did so when _______________________________________________. 5. What do people appreciate, according to Jack? According to Jack, people appreciate ________________. 6. What happened between the author and Jack? They became ________________.