阿摩線上測驗
16. Collecting the paintings of the impressionists ________ that rich man a great fortune.
(A)is cost
(B) costs
(C) to cost
(D) costing
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統計： A(16), B(131), C(9), D(19), E(0) #1537713
統計： A(16), B(131), C(9), D(19), E(0) #1537713
