QUES: Continue writing.

Betty had an easier time training the dog than Samantha because
+++++++++
ANS: Betty used positive reinforcement techniques.

QUES: Continue writing.

At the suburban home, Betty sold cosmetics to Christine because
+++++++++
ANS: Christine was an interested customer.

QUES: Continue writing.

Craig wanted to sell an expensive car to Jeffrey since
+++++++++
ANS: Jeffrey was a potential customer.

QUES: Continue writing.

Homework at school comes harder for Brian than it does for Logan because
+++++++++
ANS:
Logan is intelligent.