Choose the word which is opposite in meaning to the underlined word in the following sentence.

These toxic chemicals will contaminate the groundwater and make it unsafe for drinking.

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If tourists ______ rubbish in the river, the water would be cleaner.

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Bring a raincoat with you ______ it rains.

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Jane likes living in a city. She wouldn’t be happy if she ______ in the country.

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Recycling provides a method of reducing the amount of waste materials that gets to the landfills – thus ______ it less probable for environmental pollution to take place.

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Peter: Do you think I should take the job?

Lisa: If I ______ you, I would.

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Individually wrapped candy or chocolate causes a lot of trash, ______ fruits and vegetables are healthier and mean less waste.

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______ you have membership, you cannot use the facilities in this area. They are for members only.