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(A)as long as
(B)even though
(C)unless
(D)since

答案：登入後查看
統計： A(165), B(90), C(30), D(31), E(0) #370044

詳解 (共 1 筆)

#815257
(A)as long as 只要
(B)even though 即使
(C)unless 除非
(D)since自從；因為
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