阅读下面短文，在空白处填入1个适当的单词或括号内单词的正确形式。

Gather together a couple of good friends and take a leisurely walk through the streets—this is what many youngsters in China enjoy doing when they pay a visit 【小题1】 a new city. To them, Citywalk means “wandering around the city” on foot. Participants can follow a special urban route, exploring old 【小题2】 (building) or enjoying real local snacks.

The origins of Citywalk can be traced (追溯) back to London, England. Strictly speaking, this form of urban tourism 【小题3】 (be) not as casual and aimless as it may appear. In the beginning, Citywalk referred to tours where participants followed a 【小题4】 (plan) route under the guidance of tour conductors, exploring deep into the city’s history, culture, landscapes 【小题5】 other aspects. Gradually, the concept of Citywalk, 【小题6】 focuses on the quiet appreciation of urban lifestyle and cultural atmosphere, has gained popularity worldwide.

Up to now, the Citywalk trend 【小题7】 (spread) from first-tier cities like Beijing and Shanghai to second-tier and third-tier cities, encouraging more participants and event organizers to get involved. Some organizers invite folk culture researchers and enthusiasts (爱好者) 【小题8】 (act) as tour guides.

In short, Citywalk not only offers 【小题9】 way for young people to interact with a city but also provides them with a new social scene, where people wit the same interests and ideas can 【小题10】 (easy) make friends.