私は肉を食べ___。
Q. Which ending makes this sentence mean 'I don't eat meat' (polite)?
Translation
I don't eat meat.
Explanation
The standard polite negative of a ます-form verb is 〜ません: 食べます→食べません. 食べないです is heard in casual speech but ません is the neutral polite form; なくて and ずに are connective forms that can't end a sentence like this.