Problem: How does the sentence end?

The student preferred to write his papers on the computer versus paper because he is faster at writing on the 
Answer: computer .

Problem: How does the sentence end?

They spent their money on the whistle, instead of the stop watch. The track coach already has a 
Answer: stop watch .

Problem: How does the sentence end?

Being healthy was easier for Angela than Megan because 
Answer: Megan didn't belong to a neighborhood gym.

Problem: How does the sentence end?

Brian was able to calculate the difficult problem in his head unlike Randy because 
Answer:
Brian was a mathematician.