3. We'll have to find another room, the conference room _____ for another meeting today.
(A) is used
(B) use to be
(C) used
(D) is being used
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統計: A(90), B(17), C(14), D(109), E(0) #564236
統計: A(90), B(17), C(14), D(109), E(0) #564236