[Q]: How does the sentence end?

Slime permeated the basement but was non-existent in the mezzanine, as the 

[A]: mezzanine was shielded from it.


[Q]: How does the sentence end?

The customer had plenty of respect for Patricia and no respect for Elena because 

[A]: Elena was not helpful.


[Q]: How does the sentence end?

Eric is very creative and crafty, Derrick is not; therefore 

[A]:
Derrick would be a poor choice to help you make a mask.