Answer:Fred makes sure that the dog has a home-Fred jumps into the lake and rescue the dog Explanation:
The word that could fit the gap is definitely a possessive pronoun such as their, used because it refers to the previous pronoun them
A parallel sentence mentions the same grammatical expression twice. I would go with "D". 'Passed' and 'Demonstrated' are both past tense words that express the same past tense grammatical idea.
If you have more questions, feel free to ask me.
I say its...
Traveling toward the west, the caravan made slow but steady progress.
Hope it helped :)