TheproportionofelderlypeopleincreasesinBritainandmedic...

問題詳情：

 The proportion of elderly people increases in Britain and medical advances make it possible to keep alive patients who ________ previously.

A. would die         B. had died         C. should have died     D. would have died

【回答】

D

知識點：虛擬語氣與情態動詞

題型：選擇題