[Q]: How does the sentence end?

I decided to use conditioner instead of shampoo on my hair, the 

[A]: conditioner provides more moisture.


[Q]: How does the sentence end?

Nelson had a stutter, so Joel tended to ask him to repeat himself. 

[A]: Joel was often confused.


[Q]: How does the sentence end?

The engineers replaced the broken wood bridge over the highway with a metal one, the 

[A]:
metal was stable.