[Q]: How does the sentence end?

Robert was a lot better at learning compared to Benjamin, by reason that 

[A]: Benjamin never listened.


[Q]: How does the sentence end?

Rachel was interested in learning about herbal treatments and asked Betty to share her knowledge. 

[A]: Rachel was anxious to learn.


[Q]: How does the sentence end?

Patricia always kept a wider tooth comb than Sarah, as 

[A]:
Patricia had curly hair and needed more space in the comb.