V. Complete the sentences with the correct form of the verbs in brackets.
1. If we________ (not recycle) paper now, we’ll need to cut down more trees in the future.
2. If the local people________ (have) fresh water, they wouldn’t have to use polluted water.
3. What________ (happen) if radioactive material was not handled properly?
4. If we recycle more household waste, there________ (be) less damage to the environment.
5. If we________ (not understand) environmental problems, we would not be able to do
anything about them.
6. If the polar ice-caps melted completely, Sea levels worldwide________ (rise) about 60
metres.
7. The amount of plastic in the ocean________ (increase) if we________ (not take) action
now.
8. These fish________ (not die) if the factory ________ (not dump) its toxic waste into the
river.
9. There ________ (not be) enough oxygen if we ________ (not protect) the rainforests.
10. If I ________ (be) the President, I ________ (ban) billboards in cities in order to reduce
visual pollution.
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