Which p____does the city of Xi'an belong to?

Which p____does the city of Xi'an belong to? introduce the city of xi'an The city of Xi'an _____(become) cleaner and cleaner Which of the following activities does not belong to mechani Xi'an is one of the few cities that remains the city walls a Xi'an is one of the few cities with city walls whose remain Xi'an is one of the few cities with city walls 一道英语题目,求讲解 Xi'an is a city in the _____ of China I live in the city of Xi'an这句话的问句是什么 Xi’an is one of the oldest.（city）in China. Xi'an is one of the best cities which are famous for its his the feel of belonging to an elite group还是the sense of belong