1.Excuse me.（因为你是做调查问卷,所以势必打扰到人家,所以要先说这句）
2.Hello,I am a freshman in $#%&(学校的名称),participating an campus activity now.
3.Do you mind giving me a favor to fulfill the survey form It will just take you some minutes,please.
4.I'm sorry that my oral English is not so fluent.
5.Our aim to the survey is to understand much more situations of your life in $%&*(城市名称),so your suggestions about the city will be much appreciated !
6.Thank you for your help and support to our survey.Hope you enjoy your life in $%^*(城市名称)!
7.Nice to meet you,Have a good day !（结束的时候,两个人算是认识了,就能说“很高兴认识你”然后也可以加一句“祝你一天顺利”）当然,还有可以说 Bye~