Problem: How does the sentence end?

Dennis stood up in the subway car and offered hi seat to Nelson because 
Answer: Nelson was standing.

Problem: How does the sentence end?

Catherine liked to draw hearts more than she liked to draw cars because the 
Answer: hearts are simple.

Problem: How does the sentence end?

He knew that the sun was closer to earth than the other star, because the 
Answer: sun was brighter.

Problem: How does the sentence end?

While Hunter had poor handwriting, Joseph had neat handwriting, so it was difficult to read the writing of 
Answer:
Hunter sometimes.