Answers:
I. The article was interesting, but it did not have the information I needed.
II. Cats vary in size, so many have wild colorings.
III. We had been traveling for ten hours, so we were happy to reach the motel.
IV. Every morning he makes oatmeal for breakfast and he also makes fresh juice.
V. The dog can go to the park, if he can go on a hike.
Remember, compound words are subjective, as long as they fit in context. Hope this helps!