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?

Jane tried to clean the window with the sponge but she was unsuccessful because the 
Answer: sponge was too small.

Problem: How does the sentence end?

Filling water balloons was fun for Jennifer but not for Sarah because 
Answer: Sarah had a serious personality .

Problem: How does the sentence end?

Jennifer got pregnant from Natalie, so 
Answer:
Natalie had to be really supportive when it was time for the baby to come out.