It is not fair for him to be per

It is not fair for him to be permanently （ ）to someone who has hurt him.
A、unfriendly
B、optimistic
C、impatient
D、positive
【正确答案】：A
【题目解析】：本题考查形容词辨析。unfriendly“不友善的”， optimistic“乐观的”， impatient“不耐烦的”， positive“积极的”。句意：他对伤害过自己的人永远存有敌意，这样是不对的。故选A。