There are fewer and fewer tigers in India. The situation will continue ________ humans stop hunting ...
2022-11-18 08:55:01 33次 2016届江苏南京联合体九年级中考模拟（二）英语试卷（解析版） 单项填空 反馈错误 加入收藏 正确率 : 100%
题目内容：
There are fewer and fewer tigers in India. The situation will continue ________ humans stop hunting them for their fur and bones.
A. unless B. if C. because D. since
本题链接：
