Problem: How does the sentence end?

John wanted to build a playhouse for his kids, but bought them a toy instead because the 
Answer: toy was cheaper.

Problem: How does the sentence end?

Craig got better grades in high school than Derrick because  
Answer: Craig liked to read and study.

Problem: How does the sentence end?

Cutting down on sugary beverages was difficult for William, though Aaron found it easy. 
Answer: Aaron had never liked to drink soda.

Problem: How does the sentence end?

Nelson excitedly told Neil about how green tea got rid of his flu.  
Answer:
Nelson was enthusiastic.