---Look at these tracks. It _____ be a wolf.” ---Don’t be so sure. I think it _____ be a fox. A. mus...
2023-01-14 20:22:40 193次 2011陕西师大附中西工大附中高三第六次适应性训练英语试题 单项填空 反馈错误 加入收藏 正确率 : 100%
题目内容：
---Look at these
tracks. It _____ be a wolf.”
---Don’t be so sure. I think it _____ be a fox.
A.
must; could B. may; might C. need;
must D. could; need
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