1) We don't need to completely give up travelling by air but we need to cut_______on it a) up b) down c) off d) out 2) If we go on creating more and more environmental problems, we'll just mess_______ the whole planet. a) up b) down c) off d) out 3) We're using_______ the oil and coal very fast and we'll have run ________ of them completely within a few decades, so we need to look for alternative sources of energyalternative sources of energy... alternative sources of energy a) off, out b) off, down c) up, out d) up, down 4) We have to face______ to our responsibilities and sort out our environmental problems. a) for b) down c) up 5) We can all do something to help - like recycle properly and turn___ the lights when we don't need them on a) down b) off c) on 6) Scientists have put global warming _______ to industrial pollution. a) on b) down c) to 7) International governments need to set ________ new rules to help protect many animal species a) out b) on c) up 8) We go _________ a lot of food every week, but we don't throw much away. a) over b) through c) on

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