Potatoes turn green when ________ to light. A. exposed B. are exposed C. being exposed D. to be expo...
2022-10-09 19:01:03 13次 2016-2017学年山东济南一中高二上期中考试英语卷（解析版） 单项填空 反馈错误 加入收藏 正确率 : 100%
题目内容：
Potatoes turn green when ________ to light.
A. exposed B. are exposed
C. being exposed D. to be exposed
本题链接：
