The invigilators and markers can't refuse to invigilate and mark in the designated site of the field test.
监评人员无正当理由不得拒绝至指定术科测试场地担任监评工作。
to invigilate an exam
监考
If you have a problem, ask the invigilator.
有问题就问监考人。
I've taught sixth formers and invigilated exams.
我教过六年级学生并监考。
to invigilate an exam
监考