invigilator

the invigilator walked around the exam room to ensure no one was cheating.

students must remain silent while the invigilator is present.

the invigilator reminded the candidates to check their ids before entering.

it is the invigilator's duty to maintain order during the examination.

the invigilator distributed the exam papers to the students.

after the exam, the invigilator collected all answer sheets.

students are advised to listen carefully to the invigilator's instructions.

the invigilator noticed some students were not following the rules.

before the test began, the invigilator explained the exam procedures.

the invigilator kept a close eye on the time during the exam.