Xi'an is one of the few cities that remains the city walls as good as before.错哪?

Xi'an is one of the few cities that remains the city walls as good as before.错哪?
Xi'an is one of the few cities that remains the city walls as good as before.错哪?

Xi'an is one of the few cities that remains the city walls as good as before.错哪?
Xi'an is one of the few cities that remain the city walls as good as before.
定语从句的先行词为one of+.时,定语从句的谓语动词用复数形式.

remains--remain
定语从句的先行词是one of+复数可数名词时，从句的谓语要用复数

【俊狼猎英】团队

few改为fewest (one of+形容词的最高级形式）