QUES: Continue writing.

Despite his best efforts, Aaron could not solve Matthew's riddle because 
+++++++++
ANS: Matthew was very clever.


QUES: Continue writing.

It was easier for Brett to get a girlfriend than it was for Randy although 
+++++++++
ANS: Randy was much more charming.


QUES: Continue writing.

Angela was diurnal while Erin was nocturnal so 
+++++++++
ANS: Erin preferred to stay out late at night.


QUES: Continue writing.

Jan's steel coffee cup was in the dirty but her plastic one was clean, so she took the 
+++++++++
ANS:
plastic cup.