Problem: How does the sentence end?

I want to use the silk thread instead of the synthetic thread for this embroidery project because the
Answer: synthetic thread is low-quality.

Problem: How does the sentence end?

All of the teams equipment wouldn't fit in my moms car, because the
Answer: car was too little.

Problem: How does the sentence end?

Since Randy was quite good at pool and Donald was a beginner,
Answer: Randy knew how to do various trick shots.

Problem: How does the sentence end?

The hamster left the lettuce untouched while he munched on the carrot because the
Answer:
lettuce was unappetizing.