72_________ on the board for more than two decades, the president knows all the details necessary to persuade the new members.
(A) Having served
(B) Serving
(C) Services
(D) Served

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統計： A(29), B(25), C(1), D(8), E(0) #669055

詳解 (共 1 筆)

#1636560
"已"在飛機服務超過......=>...
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