题目内容
—Have all the mysteries been cleared up?
— Almost. But ______ only one question ______.
A. there remains; answered
B. it remains; to be answered
C. there remains; to be answered
D. it remains; answered
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题目内容
—Have all the mysteries been cleared up?
— Almost. But ______ only one question ______.
A. there remains; answered
B. it remains; to be answered
C. there remains; to be answered
D. it remains; answered