[Q]: How does the sentence end?

Quentin was learning a language and liked to practice more at the store than at his house because the

[A]: house had fewer people.

[Q]: How does the sentence end?

Adam adopted the cat instead of the dog because the

[A]: cat would prevent allergic reactions.

[Q]: How does the sentence end?

Mark put away the skateboard and pulled out his bike to get to work because the

[A]:
bike was easier to ride.