阿摩線上測驗
169.Father and son must communicate with___.
(A)himself
(B)themselves
(C)each others
(D)each other
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統計： A(9), B(26), C(83), D(531), E(0) #2773130
統計： A(9), B(26), C(83), D(531), E(0) #2773130
