In this task, you're given context and an answer. Your task is to generate the question for this answer based on the given context with commonsense reasoning about social situations..

Context: Tracy saved Taylor's friend's souls from going to the underworld that day. 
 Answer: proud
Why did Tracy do this?

Context: Remy bought Kendall a nice bike for her birthday and rode her own with her. 
 Answer: find a bike
What does Remy need to do before this?

Context: Aubrey filled Riley's tank because they wanted to replace the gasoline after borrowing Riley's car. 
 Answer: appreciate Riley for letting them borrow the car

Why did Aubrey do this?