Answer:
I believe it is D, a split infinitive
For 17 number 4. For 18 number 1. For 20 number 4. Hope this helped.
We may be taller, We may also merge with machines that can enhance our hearing, eyesight, health, etc. and we may be moved to Mars
Answer: no idea
Explanation: what is the question?
I'd assume they are referring to the metaphor of "you" being a "gray cat" or "quiet street."