Problem: How does the sentence end?

Benjamin asked to crash on Derrick's couch because 
Answer: Benjamin 's girlfriend had kicked him out and ended their long term relationship.

Problem: How does the sentence end?

Gerald went to the grocery store to buy something for lunch and, instead of buying a hamburger, he bought fruit instead because the 
Answer: hamburger was much less refreshing to eat.

Problem: How does the sentence end?

The coach found that the popsicles were more rewarding than the donuts because the 
Answer: donuts were dry.

Problem: How does the sentence end?

Sarah had to ask Laura for help with setting MAC keyboard shortcuts because 
Answer:
Laura always used MACs.