Question:
Aaron experienced back pain while Craig had no pain, so 

Answer:
Continue the sentence -- Aaron needed to visit the chiropractor frequently.


Question:
Neil has smaller feet than Joel. This is because 

Answer:
Continue the sentence -- Neil is the shorter of the two.


Question:
Adam loved unusual foreign foods but Derrick hated them. 

Answer:
Continue the sentence -- Derrick thought pig feet sounded disgusting.


Question:
Donald asked Steven to go play baseball with him because he has an extra ball and 

Answer:
Continue the sentence -- Donald doesn't have one.