Problem: How does the sentence end?

William consistently got trounced by Benjamin in tennis, because 
Answer: William was just an inferior player .

Problem: How does the sentence end?

Mary loved the high slide during playtime but Samantha did not because 
Answer: Samantha was afraid to be high off the ground.

Problem: How does the sentence end?

The rats fled their holes for the open spaces since the 
Answer: spaces were roomy for them.

Problem: How does the sentence end?

Megan had a baby whereas Katrina had a college aged child, so 
Answer:
Katrina no longer had to change diapers.