Cause and effect would be the relationship occurring in this situation.
Answer: to
Explanation:
To indicates direction, and it completes the sentence.
I am going
TO school now.
Answer:
Christopher and his coworker decided that instead of working every other car, they would work every 30 minutes. This allowed Christopher time to do other things — besides reading novels (one of his great passions), he began writing to overcome the boredom.
Explanation: