Infinitive is to keep. use is adverb. hope it helps.
First section:
1. Where
2. When
3. Who
4. Why
5. What
Answer:
B.Cause: A few experts challenged Champollion’s methods.Effect: Defenders of Champollion proved that he was correct.
Explanation:
This is the best choice in my opinion
In this book it is saying how buck is Misunderstood and that in the real world people and animals are misunderstood