102. The keynote speaker addressed the audience_______ regarding the future of renewable energy technologies.
(A) enthusiast
(B) enthusiasm
(C) enthusiastic
(D) enthusiastically
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統計: A(7), B(36), C(21), D(70), E(0) #3810324
統計: A(7), B(36), C(21), D(70), E(0) #3810324