Problem: How does the sentence end?

Kevin was trying to crochet a scarf for Dennis because 
Answer: Kevin loved to do arts and crafts.

Problem: How does the sentence end?

Michael had done more travelling and sightseeing than Samuel. 
Answer: Samuel thought a long international flight was too much hassle for the experience.

Problem: How does the sentence end?

Jason doesn't know how the world works as well as Kevin because 
Answer: Kevin had a really tough childhood.

Problem: How does the sentence end?

Jack tried to tow a car with a chain, but the snapped. The 
Answer:
car was too heavy.