Problem: How does the sentence end?

It was more expensive to crochet the shawl than the poncho, because the 
Answer: poncho required less yarn.

Problem: How does the sentence end?

The baby of Monica is sick, but Jessica's is very healthy because 
Answer: Monica feeds her baby a crappy diet.

Problem: How does the sentence end?

Amy could never keep a boyfriend while Laura had no problems doing so. 
Answer: Amy died sad and incomplete.

Problem: How does the sentence end?

Carrie was showing Lindsey all the details of the new project, because 
Answer:
Lindsey was learning from her teacher.