國文屋

位置:首頁 > 練習題 > 

 SARSisanillnessthatcanresultindeathunless

練習題2.24W

問題詳情:

 SARSisanillnessthatcanresultindeathunless

 SARS is an illness that can result in death unless _______in time.

A. to treat          B. treating         C. treated         D. treat

【回答】

C

知識點:非謂語動詞

題型:選擇題

標籤: