语法一道

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.
选什么呢？ Until recently和Up until recently一般接什么时态呢？？？