阿摩線上測驗
17. _______ carefully, the wooden chair was found damaged beyond repair and should therefore be thrown away.
(A) After examined
(B) Although examining
(C) Unless examined
(D) Until examining
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統計： A(87), B(32), C(4), D(6), E(0) #1772754
統計： A(87), B(32), C(4), D(6), E(0) #1772754