Problem: How does the sentence end?

Michael wrote Steven a letter of motivation, because 
Answer: Michael knew  was going through a hard time.

Problem: How does the sentence end?

The healthy man thanked Logan but not Robert because 
Answer: Logan helped him change his life and become healthier.

Problem: How does the sentence end?

Jeffrey liked the window seat on the airplane but Donald liked the aisle seat, 
Answer: Donald wanted access to the bathroom.

Problem: How does the sentence end?

The style of Angela is considered better looking than Victoria's because 
Answer:
Victoria 's look is more antiquated.