阿摩線上測驗
16. Mechanical engineers at Tesla Motors, speaking on the international conference, _____ their success in the
auto industry.
(A) announced
(B) announcing
(C) announce
(D) to announce
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統計： A(37), B(64), C(24), D(2), E(0) #1995284
統計： A(37), B(64), C(24), D(2), E(0) #1995284
