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He's always boasting _______ the one time he was on TV!

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My husband specializes _______ computer software.

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Drinking water can become _______ by industrial waste, so it's crucial to support clean water initiatives.

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The IT specialists apologised _______ being late because of the heavy traffic.

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Adopting _______ practices in agriculture can lead to healthier food and less environmental degradation.

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I talked _______ her about this matter.

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Creating a _______ bin at home is an easy way to turn kitchen scraps into valuable fertilizer for your garden.