Sentence 1: Megan never finished school and had a lot of trouble reading. 
 Sentence 3: A school teacher passed by and noticed she was struggling 
 Sentence 4:  Megan explained that she couldn't read, so the teacher wanted to help 
 Sentence 5:  The teacher helped Megan learn to read and they became good friends 
 Given Sentence 2: He picked out a red one because he always wanted a red car.