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It is challenging ______ me to learn a new language.
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It is nice _______her to help the old lady cross the road.
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It is wrong ________ us to keep polluting the environment.
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It is critical ______us to change the way we live.
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It is thoughtful __________ people to donate money to environmental causes, but we must do more.
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It is vital ______ us to use as little energy as possible.
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It is wrong _______ him to throw rubbish on the street.
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It is unsafe ________ fish to live in polluted water.
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It is important ______________ people to protect the environment.
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It is not safe ____________sea animals to live in an ocean full of rubbish.
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It is essential _________ her to practise the piano every day.
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It is thoughtful ________ Ben to share his food to the poor.
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It is necessary _________ us to recycle more.
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It is careless ________ us to burn so many fossil fuels.
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It is important _________ us to take care of the environment.
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It is rude_________the boy to shout at his mum.
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It is clever ________ you to solve the puzzle.
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It is brave __________ the young man to chase the criminal.
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It is intelligent _____________ scientists to study about renewable sources of energy.
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It is careless ________ him to forget the password.
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