[Q]: How does the sentence end?

The boy swam slower in the ocean than he did in the lake because the

[A]: ocean was too cold for swimming.

[Q]: How does the sentence end?

At dinner, Brett listened quietly to his father while Aaron kept interrupting, because

[A]: Aaron was rude.

[Q]: How does the sentence end?

Natalie stopped and listened to the man playing the piano unlike Patricia because

[A]:
Natalie was free.