Answer: carry on
Explanation: persevere means to continue and not give up. Giving in is the exact opposite of not giving up. Cooperate means to work with someone else which is not a synonym of not giving up. Adjust means to cope and change to something new and different. Therefore carry on is the best fit.
Early and preliminary. Look for words ending with -ly
I would pick B because that is what I use and my teacher never gave me message on changing it so I hope this helps if not I am sorry
Answer: I would go with A and C
I'm not 100% sure so i'm really sorry if you get it wrong