[Q]: How does the sentence end?

Mary's dress was wrinkle free and had perfect pleats but not Erin's because 

[A]: Erin lost the iron.


[Q]: How does the sentence end?

Jessica knew how to treat Kayla well, so 

[A]: Jessica always gave a thoughtful gift on her birthday.


[Q]: How does the sentence end?

Samuel likes to rollerblade a lot, but Brett is more of a skateboarder, so 

[A]:
Brett dislikes the skating rink.