连词成句。
1. do, said, her, forgotten, to, that, had, she, she, homework
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2. the souvenirs, buying, the, alien, girl, got out of, was, the UFO, the, while
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3. semester, science, had, this, time, I, a, hard, with
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4. better, do, my, math, I, can, thinks, teacher
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5. sorry, week, last, to, I'm, hear, a cold, Grandpa, that, had
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