until必须用完成时？gwd-26-21

prfdu2005

    

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.

答案是d，a不可以吗？难道until必须用完成时？

graceyin7

答案是A吧?

chenhei

后来有牛人找到了原文.确定为A

答案D是错的