阿摩線上測驗
30. JCPenney, an iconic American retail company, _____ for over 100 years before it filed for bankruptcy protection in 2020.
(A)has done business
(B)was in business
(C)had been in business
(D)which is in business
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統計： A(11), B(4), C(37), D(6), E(0) #3867832
統計： A(11), B(4), C(37), D(6), E(0) #3867832
