阿摩線上測驗
19. The number of people who _______ missing after the flood is still uncertain.
(A) is
(B) are
(C) has
(D) have
答案：登入後查看
統計： A(9), B(12), C(4), D(6), E(0) #4062397
統計： A(9), B(12), C(4), D(6), E(0) #4062397
