[Q]: How does the sentence end?

Because Elena was dissatisfied with the service at the restaurant while Betty was happy,

[A]: Betty left a large tip.

[Q]: How does the sentence end?

When Craig saw how Robert injured the bird he told him to stop, because

[A]: Robert was a cruel person.

[Q]: How does the sentence end?

Natalie disapproved of the behavior shown by Christine, but

[A]:
Christine acted much better in reality.