Problem: How does the sentence end?

Jeremy preferred to put honey on his toast instead of butter because the 
Answer: honey was sweet.

Problem: How does the sentence end?

James finished the book during his flight home and he loved it. The 
Answer: book is a short one.

Problem: How does the sentence end?

Mary hollered at Monica because 
Answer: Mary was so mad about the blocks falling over into the lake.

Problem: How does the sentence end?

Hunter house was filled with plants, causing Logan to sneeze a lot. 
Answer:
Hunter was the keeper of the plants.