until必须用完成时？gwd-26-21

Q21

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 exis-

tence, 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.

后来有牛人找到了原文.确定为A

答案D是错的