Some people are too particular about school records，insisting that every applicant
all diplomas from elementary school to university.
A. has
B. will have
C. should have
D. must have
网友回答
A. has
B. will have
(答案→)C. should have
D. must have
解析：insist当“坚持认为，主张”讲时，后接宾语从句用虚拟语气，即should+动词原形。