请教 GWD25－17

zhuyajie

GWD25-Q17（原CD16-17）
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
正确答案为A
请教nn～  A选项和D的区别是在处理句子的重心不一样么？ D错在哪里？
谢谢～

zhuyajie

恳请nn指教啊～  求指教～

peachweiwei

up until recently  直到最近才

until prep直到……时

A,的句意是，inuit人至今仍保持游牧生活，重点在the Inuit people led a nomadic existence
D，把这部分内容作为插入语, leading a nomadic existence, 改变了句意