They were lost at sea, the mercy of winds and waves. A. in B. on C. at D. under ☆句型诠释☆——青夏教育精英家教网—

摘要： They were lost at sea, the mercy of winds and waves. A. in B. on C. at D. under ☆句型诠释☆

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They were lost at________ sea，________the mercy of the winds and the Waves．