Emphasis can be on a mastery of oral communication.Logical formLearned from7 sentences. A mastery may pertain-to a topic.Logical formLearned from7 sentences. A student may demonstrate mastery of a topic.Logical formLearned from7 sentences. A mastery can be constituted-of-or-filled-with basic skills.Logical formLearned from7 sentences. A mastery can be imperfect.Logical formLearned from7 sentences. Mastery can be over a person.Logical formLearned from7 sentences. Proof may pertain-to a mastery.Logical formLearned from7 sentences. A mastery may pertain-to (grass courts).Logical formLearned from7 sentences. A mastery may pertain-to a keyboard.Logical formLearned from7 sentences. Mastery may pertain-to an information.Logical formLearned from6 sentences. Mastery may pertain-to abilities.Logical formLearned from6 sentences. A mastery can be orchestral.Logical formLearned from6 sentences. Mastery can be over a body.Logical formLearned from6 sentences. Mastery may pertain-to air.Logical formLearned from6 sentences. A female may have mastery.Logical formLearned from6 sentences.