QUES: Continue writing.

Carrie is being paid to build a round pen for Betty's pigs, so 
+++++++++
ANS: Betty is the farmer.


QUES: Continue writing.

Matthew had always wanted a doberman but Nick wanted a poodle because 
+++++++++
ANS: Nick liked small dogs.


QUES: Continue writing.

Joel was the person who fed Craig's dog after dinner so 
+++++++++
ANS: Craig  got paid.


QUES: Continue writing.

The elderly people at the nursing home love Derrick more than Justin because 
+++++++++
ANS:
Justin had little practice on their relatives.