A three-year search for the missing Malaysia Airline’s flight MH370 has been cal

游客2023-10-15 22

问题 A three-year search for the missing Malaysia Airline’s flight MH370 has been called off, ______one of the great aviation______mysteries.

选项 A、left: unsolved
B、leaving: solved
C、left: solved
D、leaving: unsolved

答案 D

解析句意：对于马来西亚航空公司MH370飞机长达三年的搜索已经叫停，留下了一大航空未解之谜。现在分词作结果状语，所表示的是谓语动词的直接结果。这个秘密并没有解开，因此unsolved符合句意。故选D。

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