Part 1. Definition
In this task, you're given four sentences of a story written in natural language. The given story is not complete and your job is to complete the story by selecting one of the sentence choices from (A) and (B), such that the story sounds fully coherent.
Part 2. Example
Sentence1: Rick grew up in a troubled household. Sentence2: He never found good support in family, and turned to gangs. Sentence3: It wasn't long before Rick got shot in a robbery. Sentence4: The incident caused him to turn a new leaf. 
 (A) He is happy now. (B) He joined a gang.
Answer: A
Explanation: As mentioned in fourth sentence, the incident turned a new leaf to Rick's life; so, he must be happy now.
Part 3. Exercise
Sentence1: Chad was an incredible singer. Sentence2: He was just too afraid to sing. Sentence3: He wanted to join a church choir but thought his friends would laugh. Sentence4: Due to him being so embarrassed by his skill and passion. 
 (A) Chad got up the nerve to deliver his comedy routine. (B) Instead of laughing, everyone applauded when Chad finally sang.
Answer:
B