Sentence 1: Sam's teacher assigned the class to make dioramas. 
 Sentence 3: Sam did his best, but the diorama wasn't perfect 
 Sentence 4:  Next to the other expert-looking models, it looked sloppy and simple 
 Sentence 5:  Sam got an A because the teacher knew he made it himself 
 Option 1: When he asked for help, his mom said that wouldn't be fair. 
 Option 2: Sam was glad when she worked all night on it while he caught up on other homework.