Problem: How does the sentence end?

Betty was dressed more nicely than Monica was because 
Answer: Betty was going on a date.

Problem: How does the sentence end?

Jeffrey was always flirting with men according to Samuel, but really 
Answer: Samuel is just jealous in general.

Problem: How does the sentence end?

When it comes to skateboarding, Elena is much better compared to Betty due to 
Answer: Elena being hardworking.

Problem: How does the sentence end?

Nelson has some very red eyes, but Robert does not because 
Answer:
Nelson lives in a dry climate.