120. Because of the unexpected power outage, the production line was _______ inactive for three hours.
(A) remain
(B) left
(C) stayed
(D) kept
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統計: A(34), B(43), C(46), D(37), E(0) #3805128
統計: A(34), B(43), C(46), D(37), E(0) #3805128