连词成句。
1.by, they,the, going, are, Great Wall, to, bus, (.)
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2.part, oldest, the, than, is, more, years, 2000, old, (.)
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3.so, I, a, true, now, am, man, (.)
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4.it, let’s, clean, keep, beautiful, and, (!)
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5.lucky, are, to, we, it, see, (.)
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