阿摩線上測驗
14. There _______ a steady rise in the popularity of animated films over the last fifteen years.
(A) was
(B) has been
(C) is
(D) had been
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統計： A(6), B(94), C(5), D(30), E(0) #2081319
統計： A(6), B(94), C(5), D(30), E(0) #2081319
