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8. We are surprised that Sally and Ray decided to get married. No one knows_________ . They often fight with each other and are unhappy together.
(A) why
(B) where
(C) when
(D) how
答案：登入後查看
統計： A(961), B(31), C(46), D(40), E(0) #1589925
統計： A(961), B(31), C(46), D(40), E(0) #1589925
