She bought some cups of tea for the visitors in the next room.
A. Some cups of tea were bought for the visitors in the next room by her
B. Some cups of tea was bought to the visitors in the next room by her
C. Some cups of tea bought to the visitors in the next room by her
D. Some cups of tea were bought for the visitors by her in the next room
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Have the thieves stolen the most valuable painting in the national museum?
A. Have the most valuable painting in the national museum been stolen by the thieves ?
B. Has the most valuable painting in the national museum been stolen by the thieves ?
C. Had the most valuable painting in the national museum been stolen by the thieves?
D. Has the most valuable painting in the national museum stolen by the thieves ?