I: Put the words or phrases in the right order to make sentences.
1. If/ is polluted/ fish/ the river/ will die.
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2. We/ recycle/ rubbish/ should/ try to.
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3. Don't throw/ plastic bags/ the/ because/ can reuse them/ you.
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4. You/ should/ when/ use reusable bags/ you go shopping
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5. If/ there/ people recycle more/ pollution/ will be less.
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II. Write conditional sentences from these statements.
1. We will plant more trees. The air will be fresher.
If......................................................................................................................
2. We will use fewer cars. We will reduce pollution.
If..........................................................................................................................................................
3. We will cycle to school every day. We will keep fitter.
If..............................................................................................................................................................
4. We will use recycled products. We will save money.
If..........................................................................................................................................................
5. The boy eats so many green apples. He will be ill.
If..........................................................................................................................................................
6. We will use reusable bags for shopping. We will reduce waste.
If..........................................................................................................................................................
7. She doesn't hurry. She is late for school.
If............................................................................................................................................................
8. You don't water the plants. The die.
If.............................................................................................................................................................
1Don't throw plastic bags because you can reuse
2If water polluted, fishes would die
3If you turn off tap when brush your teeth, you will save water
4If we plant trees, air will be fresher
5You should turn off lights before you leave room
6We should use useable bags instead of plastic bags
7If we go to school by bus, we will reduce air pollution
8If we use pesticides indiscriminately, water pollution will be worse
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