Problem: How does the sentence end?

Hiking is a favorite pasttime of Cynthia but not Natalie because 
Answer: Cynthia had a longing to see a woodpecker.

Problem: How does the sentence end?

He liked to get his nutritional supplements as powders rather than pills, because he found he remembered to take the 
Answer: powders more often.

Problem: How does the sentence end?

Dave tried to hide the flask under the chair but everyone could still clearly see it. The 
Answer: flask was just too hefty.

Problem: How does the sentence end?

In my opinion, oak is a far superior wood than pine, because the 
Answer:
oak is very strong.