17
(A) although
(B) because
(C) unless
(D) but
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統計: A(19), B(216), C(23), D(13), E(0) #3752522
統計: A(19), B(216), C(23), D(13), E(0) #3752522
17
(A) although
(B) because
(C) unless
(D) but