Problem: How does the sentence end?

He wore his T shirt instead of the dress shirt, because the 
Answer: T shirt was already dry.

Problem: How does the sentence end?

Brett had to introduce Christopher to all the important things in the company, because 
Answer: Christopher is a junior developer.

Problem: How does the sentence end?

During lunch the employees had to eat the salads instead of the sandwiches because the 
Answer: salads were fresh.

Problem: How does the sentence end?

Jessica's lungs were much blacker unlike Laura's because 
Answer:
Jessica liked to smoke on their work breaks.