Problem: How does the sentence end?

The teens wouldn't let Benjamin play with them for being too immature, all while Lawrence watched over them all. 
Answer: Benjamin was younger than the teens.

Problem: How does the sentence end?

The document was given to Nelson to work on and not Kenneth because 
Answer: Kenneth had less experience.

Problem: How does the sentence end?

The friends stopped going to the cafe and opted for the park instead, as the 
Answer: park had a welcoming atmosphere now.

Problem: How does the sentence end?

The doctor was able to diagnose the reason for the man's cough, but not his headache. The reason for the 
Answer:
cough was clear.