[Q]: How does the sentence end?

Matthew knew how to cure a bleeding nose but Lawrence did not because

[A]: Matthew had an extensive knowledge of first aid.

[Q]: How does the sentence end?

At the diner Monica made a plate of pancakes for Katrina after

[A]: Katrina made the order.

[Q]: How does the sentence end?

Katrina liked girls with long legs but Emily liked girls with short legs.

[A]:
Emily asked the midget out to dinner.