19. The number of people who _______ missing after the flood is still uncertain.
(A) is
(B) are
(C) has
(D) have

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統計: A(2), B(1), C(1), D(2), E(0) #4062397

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#7551269
  答案:B 題目翻譯: 洪水過後,仍然...
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