Problem: How does the sentence end?

For natural looking hair, the hairdresser recommended gel over mousse, because the 
Answer: mousse was more noticable.

Problem: How does the sentence end?

The spoon was duller than the fork was because the 
Answer: fork had just been polished.

Problem: How does the sentence end?

Rachel has a smaller head than Katrina because 
Answer: Katrina was born with a larger skull.

Problem: How does the sentence end?

Elena tried to make Sarah understand that Jane had a pet lizard because 
Answer:
Elena liked them.