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big/ How/ drive/ ?/ alternative/ machinery/ should/ will/ we/ energy/ use/ much
will/ time/ not/ this/ impact/ of/ testing/ wind/ Susan/ tomorrow/ power/ be/ the
consumption/ as/ needs/ energy/ to/ The/ as/ possible/ reduced/ much/ be
polluting/ environment/ oil/ costs/ its/ of/ , / and/ money/ lot/ waste/ is/ Using/ also/ a/ the
1. Fossil fuels are increasingly replaced by renewable energy sources
2. How much alternative energy will we use to drive big machinery ?
3. Susan will not be testing the impact of wind power this time tomorrow
4. The energy consumption needs to be reduced as much as possible
5. Using oil costs a lot of money, is its waste and also polluting the environment