Problem: How does the sentence end?

Jessica did a lot of exercises but Maria did not because
Answer: Maria had very bad fitness levels.

Problem: How does the sentence end?

Since Maria had straight teeth and Lindsey did not,
Answer: Maria was told that they did not need to get braces.

Problem: How does the sentence end?

Laura is teaching Tanya how to fish for catfish because
Answer: Tanya is an inexperienced fisherman.

Problem: How does the sentence end?

Nelson was on a mission to ruin Michael 's career because
Answer:
Michael had slighted him in the past.