[Answer] 10. His ----- are running loose.

Step 1 : Introduction to the question "10. His ----- are running loose."

...1. dogs 2. dogs' 3. dog's 4. dogses Plural noun again.

[Answer] 3. If you see a fence broken and a horse could possibly get loose, what should you do?

Step 1 : Introduction to the question "3. If you see a fence broken and a horse could possibly get loose, what should you do?"

...1. Look at it blankly 2. Just leave it alone someone will fix it 3. Tell the barn manager/owner 4. Tell your friends You always want to tell the barn owner/manager. If a horse could get out, either lead the horse out or wait for help. Then tell the barn owner or manager.

[Answer] 7. If you had "a few roo's loose in the top paddock", what would you be?

Step 1 : Introduction to the question "7. If you had "a few roo's loose in the top paddock", what would you be?"

...1. Mentally incompetent 2. Not incompetent 3. Monetarily incompetent 4. Morbidly incompetent Also "a few bricks short of a load", "not the full quid" and "a sandwich short of a picnic"!