2. 外语
  3. This is an illness that can result in total blindness ______ left untreated.

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

admin2012-02-26  381
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://kaotiyun.com/show/yvJO777K
0

成人本科学位英语

相关试题推荐
随机试题
最新回复(0)