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To avoid potential injuries when doing gym-bas
问题详情
To avoid potential injuries when doing gym-based activities, you need to make sure that you get ______ instructor.请帮忙给出正确答案和分析，谢谢！
参考答案
正确答案：qualified
qualified 解析：空前的a和空后的instructor表明，本空应填一形容词。该段第一句话提到Check your instructor is qualified to recognized standards，第二句紧接着提到Incorrect technique can easily lead to injuries or make existing problems worse。由此可见，为了避免不正确的方法导致的受伤，我们应检查教练是否达到标准，即是否合格，故本空应填qualified。
