监考老师仔细检查了所有学生的证件。
The ___proctor carefully checked all the students' IDs before the exam.
考试期间需要老师监考来确保公平。
Teachers are required for ___proctoring during exams to ensure fairness.
考试期间，监考员会仔细检查每个学生的身份证。
The ___proctors carefully checked each student's ID during the exam.
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