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1 . The research team hope that, with their newly-developed technology, around 85 percent of paper in Denmark________ (recycle) by the end of this year. （所给词的适当形式填空）
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2 . By the time he comes tomorrow, all the rooms ________ (paint).(所给词的适当形式填空）
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3 . They are trying to make sure that 5G terminals will have________ (install) by 2022 for the Beijing Winter Olympics. （所给词的适当形式填空）
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