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Complete PICLE corpus of essays by Polish advanced EFL students (330,000)

/^t/Another step, which would make the applying of the one mentioned above necessary, is to provide each citizen representing the country, where the illness appeared with the medical certificate, proving that such a person had been tested and inoculated against the disease. Such a document should be a kind of insurance that a given person is in good health and carry no danger of distributing the illness further.