[Q]: How does the sentence end?

Erin was better at driving than Kayla because

[A]: Erin had taken a driver's safety class at school.

[Q]: How does the sentence end?

Elena had a lot of skills in the bedroom but Felicia had few skills.

[A]: Felicia was unable to satisfy all their lovers.

[Q]: How does the sentence end?

Dennis had a louder class than Robert did because there were more children in the class of

[A]:
Dennis .