【多选题】【消耗次数:1】
_____________ , he began to write a report.
Finish the exploration
Having finished the exploration
The exploration finished
The exploration finish
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相关题目
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【单选题】 In January, 2004, the United States successfully launched “Spirit”, a Mars Exploration Rover(火星控测飞行器), ____ a new milestone(里程碑)in the history of mankind.
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