Problem: How does the sentence end?

The kids wanted to play in the attic instead of in the basement, as the 
Answer: basement felt spooky to them.

Problem: How does the sentence end?

Joseph has not been in love for years, though Donald is currently in love. So, 
Answer: Donald is probably happier.

Problem: How does the sentence end?

Donald ran the mile very quickly unlike Christopher because 
Answer: Christopher thought that exercise was a joke.

Problem: How does the sentence end?

John emptied the entire bowl of cookie batter onto the cooking pan until the 
Answer:
pan was full.