[Q]: How does the sentence end?

Felicia loved going to the lake with friends but Samantha was not fond of it, since 

[A]: Samantha was a huge introvert.


[Q]: How does the sentence end?

When Ian wrote a published article, Dennis was very envious because 

[A]: Dennis had been rejected many times in the past.


[Q]: How does the sentence end?

Dennis lost more weight than Nelson over the summer, because 

[A]:
Nelson didn't take any walks outside.