Number 3 and 4 don't make sense.
Number 2 includes the word other, making it flow smoother than the rest when you say it aloud.
Answer:
A) it makes a verb an adjective
Explanation:
It makes the verb an adjective because if you have "fast" and put in "-er" you'd get "faster". Faster would mean going more vigoriously than before, therefore describing the speed of "fast"
Answer:
Yes
Explanation:
cause why not so so so so so so so so so
I think all besides the second to last and the second maybe