问题描述：
John opened the door.Beside the table()he had never seen before
John opened the door.Beside the table ______he had never seen before.
A.a girl did sat B.a girl sat C.did a girl sit D.sat a girl
John opened the door.Beside the table ______he had never seen before.
A.a girl did sat B.a girl sat C.did a girl sit D.sat a girl
问题解答：
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