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st mile” problem since we can unlock a bike by simply scanning the QR code on it and go wherever we want.However, bikesharing has also led to problems, such as illegal parking or damage to the bikes. Some people park the bikes without considering any inconvenience for other people. Furthermore, we feel very disappointed when the bike we find cannot be used because the QR code is destroyed or the bike has been damaged. To cope with the above problems, I suggest the government set up some zones specifically for bike parking with bright signs. What’s more, all citizens should consider using shared bikes responsibly as a way to improve our lifestyle and promote a greener environment within the city.I really hope that shared bikes can be made best use of in the near future. 附:聽(tīng)力材料Text 1 M: Lucy, would you like to go to the cinema with me this Friday night? W: I’d like to, Mike. But I have to meet Alice at the airport. How about Saturday night? M: OK. See you then.Text 2M: Let’s have a short break. Which would you like to drink, coffee, juice or tea?W: A cup of tea please. How about you?M: Iced coffee as usual. It can keep my mind sharp.Text 3W: You are early today! Did you drive here?M: That’s my last choice. Driving a car in