[Q]: How does the sentence end?

The teacher did not know what was  the worst injuries  between a broken hand or foot. She said that with the 

[A]: foot , you couldn't walk.


[Q]: How does the sentence end?

The structure that Adam was in was more unstable than that of Aaron's because 

[A]: Aaron was in a modern building.


[Q]: How does the sentence end?

The home of Brian was flooded more than Kyle's because 

[A]:
Brian lives closer to the water source.