[Q]: How does the sentence end?

Sarah had an easy time during their pregnancy but Rebecca experienced a lot of nausea. 

[A]: Sarah enjoyed the experience of being pregnant.


[Q]: How does the sentence end?

Morgan preferred to use her money instead of the credit card to pay her bills because the 

[A]: money was easier.


[Q]: How does the sentence end?

The fish tank of Brett is dirtier than the one that Leslie owns, so 

[A]:
Leslie is a proper pet owner.