[Q]: How does the sentence end?

Jeffrey took care of Kevin everyday while his leg injury healed because

[A]: Jeffrey was a care giver.

[Q]: How does the sentence end?

Michael slowly explained the scientific method to Justin, because

[A]: Justin found it difficult to understand.

[Q]: How does the sentence end?

Laura didn't mind giving her snack to Erin because

[A]:
Laura had already eaten lunch and was full.