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Yesterday, I saw him talking to another boy, Peter, and I cannot _______ _______ if he wants Peter to be his best friend instead of me.
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_______ _______, I find many people willing to pay a little higher price for the things that are friendly to the environment.
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It also watches the river and stops the illegal hunting of animals, which has put the wild animal population _______ _______.
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If mankind _______ _______ nature in this way, we may be on our way to producing a real-life Frankenstein¡¯s monster.
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Would anyone say that development should be stopped _______ _______ of nature?
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