[Q]: How does the sentence end?

The room was too stuffy for the businessman so he moved to the hallway, since the 

[A]: room was an uncomfortable environment.


[Q]: How does the sentence end?

The extinguisher could not quench the fire in the kitchen because the 

[A]: fire is strong.


[Q]: How does the sentence end?

Megan wasn't able to walk as long a distance as Sarah, because 

[A]:
Sarah lacked an achilles tendon injury.