We should keep the environment clean.We must not pump s___ into the river

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• 重新排列下列单词,组成句子.1.beaches,everyone,keep,should,our,clean._______________________________2.people,get,ill,may,they,when,dirty,drink water.___________________________3.should,we,do,best,to,our,take,care,good,of,environment,the_________________4.can,wu,stop,from,them,pouring,water,dirty,the,into,river______________5.to,water,must,we,save,turn,off,the,when,tap,we,out,brush,teeth___________
• 根据首字母提示在横线处填入适当的词（英语）You must have heard the t__“etiquette”.It means n__ and p__ social behavior.But sometimes"e___"makes some people u___ and a___.for example,you want to play l___ music at home,but the neighbors in the y___ would ask you to t___ it d___ r___ a___.Even if you are with your friends,you have to keep your voices down in p___ places.we should also t___ c___ not to c___ or s___ loudly in public.What is worse,a good b___ in E____ may be re
• you must have heard the t___ "etiquette".it means n__ and p___ social behavior.but sometimes"e___"makes some people u____ and a___ for example you want to play l__ music at home but the neighbors in the y__ would ask you to t__ it d___ r_____a___ even if you are with your friends you have to keep your voice down in p___ places we should also t___ c___ not to c___ or s___ loudly in public what is worse a good b__in E___ may be regarded as an i___ one i
• We should keep the environment clean.We must not pump s___ into the river
• We should keep the environment clean.We must not pump s___ into the river
• We all know we have only one earth to live o__.It's our duty to p___ it.Everyone should do helpfulthings for her.For e__,we must stop polluting the river and the lake.We should plant many trees and g___ to make our environment nice and clear.We plant trees to stop the the wind and the sand b___ towards the farmland.We should plant flowers to m___ our environment around us more beantiful.Please r___ we have one earth.We have one earth.We should protect
• We must do a lot of work to keep our environment clean and tidy.（改为同义句）A lot of work must( ) ( )to keep our environment clean and tidy.
• Everyone should keep the environment(cleaning)?为什么不用clean?