问题描述：
英语阅读理解、首字母
When litter enters rivers ,it can cause serious water p____ .Litter on the s___ also causesroad accidents .Litter is often blamed on certain groups of people ,s____
as smokers and young people.studies s_____ that dirty places with a lot of litter are more likely to become dirtier litter invites more l________.
尽快、、、谢谢
When litter enters rivers ,it can cause serious water p____ .Litter on the s___ also causesroad accidents .Litter is often blamed on certain groups of people ,s____
as smokers and young people.studies s_____ that dirty places with a lot of litter are more likely to become dirtier litter invites more l________.
尽快、、、谢谢
问题解答：
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