大家觉得选哪个好? Key is B。 为什么?
21. 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 time, leading a nomadic existence, the Inuit people were sheltered.
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