题目内容

8.
Help to Fight Pollution
 
 Pollution
    Water Making rivers and lakes dirty.
Killing fish and polluting our (16)drinkingwater.
    NoiseMaking us talk(17)louderand become angry more easily.
(18)AirBad for living things.
   Factories(19)Cleantheir water before throwing it away.
  Rules
 
 
 
  People
 Do not throw waste on the ground
Go to work(20)by busor in the same car.

分析

解答 16.drinking   17.louder   18.Air  19.Clean   20.by bus

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