(1) Miss Jekyll will be invigilating today.

(2) He wrote this whilst invigilating a biology examination.

(3) I've taught sixth formers and invigilated exams.

(4) I shouldn't invigilate this year.

(5) I invigilate two subjects today.

(6) I am arranged to invigilate Junior one's history test.

(7) From technical area analysis, this invigilate is too severe, all sorts of measure that help city cannot come on stage.

(8) I need to invigilate the biology practice examination for the first class.

(9) Instructors on leave have to authorize teachers of this school for class make-ups. Do not just let the students invigilate the exam.

(10) Different is(Sentence dictionary), the exam in the life often does not have person invigilate.

(11) From 2 p. m. to 3 p. m. , I invigilate biology test again.

(12) Today our school begins to have this semester's final test. I invigilate the Chinese test. I spend other free times finishing three lesson's dictation.

(13) In case misfortune dead machine, must not alarmed, do sth without authorization closes machine restart, and should personnel of invigilate of report of raise one's hand.