阿摩線上測驗
24. To increase efficicncy, the president demanded that we______ the operating systemn and update most of the software we use.
(A) change
(B) can change
(C)changed
(D) have changed
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統計： A(26), B(11), C(6), D(13), E(0) #2717403
統計： A(26), B(11), C(6), D(13), E(0) #2717403
