This is an illness that can result in total blindness ______ left untreated.A、if

游客2025-03-14 8

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:https://www.tihaiku.com/zcyy/3996641.html

相关试题推荐

随机试题

最新回复(0)

Iamverydisappointed______theresultsoftheexperiment.A、fromB、forC、toD、