Problem: How does the sentence end?

The account of Lawrence had a negative balance as opposed to Justin, due to the fact that 
Answer: Lawrence was poor.

Problem: How does the sentence end?

There was a lot of doubt in the marriage of Elena and not Natalie, because the wife of 
Answer: Elena was unfaithful.

Problem: How does the sentence end?

Ryan was having kidney infection problems but Ian was fine. 
Answer: Ryan needed to drink a lot of cranberry juice.

Problem: How does the sentence end?

Maria had a lot less friends than Tanya because 
Answer:
Maria had always been a shy person.