Sentence 1: Evan was having a birthday. 
 Sentence 3: He shared the donuts with the other students 
 Sentence 4:  They all wished him a happy birthday 
 Sentence 5:  Evan was happy that he had spent his birthday with his friends 
 Option 1: He picked up donuts to take to class the next day. 
 Option 2: He picked up cupcakes to take to class the next day.