连词成句。
（1）hamburger, don’t , why, a , eat, you
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（2）to,  don’t,  why,  you,  now,  go,  school
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（3）jeans,   are,   whose,   they
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（4）in, perhaps, umbrella, the, is ,study, your
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（5）be,  late,   don’t ,  again
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