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Until recently, the Inuit people led a nomadic existence, sheltering in igloos, the ice-block domes that are peculiar to north-central Canada, and in structures made of stones, bones, driftwood, and skins. A. Until recently, the Inuit people led a nomadic existence, sheltering B. During recent times, the Inuit people lead a nomadic existence, sheltering C. In the times that are recent, the Inuit people led a nomadic existence, sheltered D. Up until recently, the Inuit people, leading a nomadic existence, have sheltered E. Until recent times, leading a nomadic existence, the Inuit people were sheltered 这题由于搜出了原句,所以看来是选A无疑了,但我想问下A中为什么会出现sheltering呢?是作什么成分的? |
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