Sentence 1: Sam's grandpa was proud to show off his garden. 
 Sentence 3: A bit later, Sam woke his grandfather 
 Sentence 4:  Sam proudly handed the old man a basket of vegetables 
 Sentence 5:  The grandpa smiled although every vegetable was unripe 
 Option 1: When the grandpa took a nap, Sam went back to the garden. 
 Option 2: He told Sam it would be a few more weeks until the vegetables were ripe.