假设你是李华，是某校高三学生。请你根据下面的提示，给校报"英语角"栏目写一封英语倡议信，呼吁大家合理使用共享单车，爱护共享单车。
1.使用共享单车的优点；
2.使用共享单车存在的问题；
3.你向同学发出倡议。
注意：1.词数 100 左右；2.可适当增加细节，以使行文连贯。参考词汇：shared bikes
Dear fellow students，
______________
Yours
Li Hua

【考点】提纲作文．

【答案】Deal fellow students，
I'm Li Hua，a Senior Three student.I'm appealing to you to focus more attention on shared bikes，of which the popularity has been increasing.
Benefits of shared bikes riding are obvious：they never produce pollution，thus encouraging low carbon lifestyle.Convenience is also why people are in favor of it.Additionally，public bikes are almost free of charge while other forms，taxis，for example，are quite expensive.But still，problems cannot be overlooked.The main concern is that random parking frequently bothers others a lot.Worst of all，bikes of this kind are left damaged for unknown reajye.ains.So，considerate parking is what enables everybody to enjoy the public facility.And please keep in mind that when using them，one should take good care of shared bikes rather than destroying the properties.A small action can make a huge difference.Everybody counts!
Yours，
Li Hua