問題詳情:
This is an illness that can result in total blindness if ________ untreated in time.
A. being left B. left C. to be left D. leaving
【回答】
B
知識點:倒裝與省略
題型:選擇題
問題詳情:
This is an illness that can result in total blindness if ________ untreated in time.
A. being left B. left C. to be left D. leaving
【回答】
B
知識點:倒裝與省略
題型:選擇題