[Q]: How does the sentence end?

Justin ate a lemon while Lawrence ate a cookie, so 

[A]: Lawrence ended up with a sweet taste in their mouth.


[Q]: How does the sentence end?

Jennifer was in the market for a new car while Samantha thought they could get more miles out of their car. 

[A]: Samantha went shopping for a new sofa.


[Q]: How does the sentence end?

Christine had the worst dandruff the dermatologist Felicia had ever seen, so 

[A]:
Felicia prescribed a medicated shampoo.