[Q]: How does the sentence end?

At the BBQ, Christopher asked Lawrence for a hamburger bun, because 

[A]: Lawrence did have an extra one.


[Q]: How does the sentence end?

James picked the item in the car and moved it to a box and then the 

[A]: car was empty.


[Q]: How does the sentence end?

Nick just bought a new webcam and asked Brett to help set it up since 

[A]:
Brett knew how.