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OSD Test B1 Certificate The OSD test B1 certification is a great way to show off your German language skills. It is a well-known test that follows CEFR standards. The exam consists of both written and oral tests. Candidates are able to take the tests on their own or in combination. It is essential to prioritize the tasks you have to complete for your exam and to practice regularly. It is also important to remain calm and utilize relaxation techniques during the test. Benefits OSD is an international lan
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