阿摩線上測驗
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試卷名稱：111年 - 111 國立政治大學_碩士班暨碩士在職專班招生考試試題_共同科：英文A#124116
年份：111年
科目：研究所、轉學考(插大)、學士後-英文
19. The federal government asked that vaccinating all students _______ done soon； however, there are still many unvaccinated students as of today.
(A) had been
(B) be
(C) have been
(D) were
