连词成句。
1. is, time, what, it (?)
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2. at, school, hard, study, I (.)
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3. today, how, the, is, weather (?)
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4. go, at, work, seven, we, to, thirty (.)
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5. my, eat, I, breakfast, family, with (.)
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6. week, day, second, of, day, the, what, is, the (?)
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7. breakfast, when, is (?)
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