[Q]: How does the sentence end?

Eric wanted to grow carrots and potatoes so they asked Dennis for help because 

[A]: Eric  had no experience.


[Q]: How does the sentence end?

Rachel is considered a leading expert witness over Victoria because 

[A]: Rachel has 25 years of experience in the field.


[Q]: How does the sentence end?

Joel taught Matthew how to sew a dress for school because 

[A]:
Joel was an expert.