2. 专升本
  3. A beam of light will not bend round the corners unless______ to do so with the help of a reflecting device.

A beam of light will not bend round the corners unless______ to do so with the help of a reflecting device.

admin2018-08-16  38
问题 A beam of light will not bend round the corners unless______ to do so with the help of a reflecting device.
选项 A、being done
B、made
C、to be made
D、having made
答案B
解析 省略了主语和系动词的分词状语结构。
转载请注明原文地址:https://kaotiyun.com/show/4lPC777K
本试题收录于： 英语题库普高专升本分类
0

英语

普高专升本

相关试题推荐
随机试题
最新回复(0)