This article mainly talks about how ________ the environment. A. protect B. protects C. to protect D...
2022-09-29 14:35:59 20次 上海市杨浦区2019届九年级上学期期末（一模）质量监控英语试卷 单选题 反馈错误 加入收藏 正确率 : 100%
题目内容：
This article mainly talks about how ________ the environment.
A. protect B. protects C. to protect D. protecting
本题链接：
