[Q]: How does the sentence end?

While lost in the woods, Cynthia stumbled across Maria's cottage. 

[A]: Cynthia knocked on the door to get help.


[Q]: How does the sentence end?

Jennifer called Erin for some help with an electrical problem for 

[A]: Erin had done a lot of electrical work before.


[Q]: How does the sentence end?

Drawing was a talent of Sarah but not Carrie so 

[A]:
Sarah was always eager to show her her artwork .