This is an illness that can result in total blindness _____ left untreated.A、aft

游客2024-09-02 42

问题 This is an illness that can result in total blindness _____ left untreated.

选项 A、after
B、if
C、since
D、unless

答案 B

解析如果从句的主语和主句的主语一致，通常省略从句的主语和系动词，根据句意应选B。此句完整形式为：This is an illness that can result in total blindness if it is left untreated．

转载请注明原文地址:https://tihaiku.com/zcyy/3739851.html

相关试题推荐

随机试题

最新回复(0)

Hewasdeterminedtosailaroundtheworld______hisillnessandoldage.A、give