Question

【题目】The "teacher-free exam" means that students take their exams teachers. Students must be more honest.
A.without
B.against
C.through
D.by

Answer 1

【答案】A
【解析】句意是：“无人监考考试”的意思是学生考试时没有老师监考，学生们必须更诚实。根据句意用介词 without，意为“没有”，故选A。