1.there are a lot of rubbish in our school yard
1.there are a lot of rubbish in our school yard
2.we have used up fifty litre of water
3.you can't use the water that leak out
4.there is a piece of paper on the ground.please pick up it
5.students help their school make less pollute
2.we have used up fifty litre of water
3.you can't use the water that leak out
4.there is a piece of paper on the ground.please pick up it
5.students help their school make less pollute
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你能帮帮他们吗