[Q]: How does the sentence end?

We could negotiate the prices, but could not do so with the terms, as the 

[A]: terms were fixed.


[Q]: How does the sentence end?

Benjamin drank Dennis's juice when they weren't looking last night so 

[A]: Benjamin was hiding the bottle.


[Q]: How does the sentence end?

Carrie was training Emily to be a ventriloquist, and 

[A]:
Carrie had been teaching ventriloquism for a very long time.