连词成句。
1. know, I, don't (.)
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2. in, when, you, arrive, China, do (?)
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3. Mrs. Smith, please, to, talk (.)
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4. for, you, when, leave, Beijing, do (?)
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5. may, go, Canada, I, to (?)
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6. say, these, numbers, you, can, car (?)
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