Problem: How does the sentence end?

We often cleaned up with vinegar instead of cleaner because the 
Answer: cleaner was much too pricey.

Problem: How does the sentence end?

James wanted to get a new pillow and mattress for his bedroom.  He got the 
Answer: mattress first even though it was more expensive.

Problem: How does the sentence end?

Percy goes to the park on his bike instead of on the train, because the 
Answer: train gets him there slower.

Problem: How does the sentence end?

Derrick paid for their dinner but Steven wanted their's for free because 
Answer:
Derrick was generous.