19. For the future well-being of our company, it is imperative that the CEO_____now.
(A) resign
(B) resigning
(C) would resign
(D) be resigning
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統計: A(2), B(0), C(0), D(0), E(0) #3049973
統計: A(2), B(0), C(0), D(0), E(0) #3049973