[Q]: How does the sentence end?

Kenneth was widely regarded as being cute but Steven was not because

[A]: Steven was plain.

[Q]: How does the sentence end?

After being happy for a bit, Raul decided to be a little more productive because the

[A]: productive people felt fulfilled later on.

[Q]: How does the sentence end?

Derrick asked Leslie for advice on how to avoid bankruptcy, because

[A]:
Derrick is bad at managing money.