This is an illness that can result in total blindness______left untreated.A、ifB

游客2025-03-08 39

问题 This is an illness that can result in total blindness______left untreated.

选项 A、if
B、after
C、since
D、because

答案 A

解析 if在这里引导的是条件状语从句，其中省略了it is。故答案为A。

转载请注明原文地址:http://tihaiku.com/zcyy/3988498.html

相关试题推荐

随机试题

最新回复(0)

______formyillnessIwouldhavelenthimahelpinghand.A、NotbeingB、Hadit