题目内容：
12. —Look at these tracks. It _____ be a wolf.
—It needn.t be. It _____ be a fox.( )(本题3.5分)
A、 must; could
B、 may; might
C、 need; must
D、 could; need
参考答案：
选择题：12. —Look at these tracks. It _____ be a wolf.—It
- 题目分类：赤峰学院- 综合英语II(专升本)
- 题目类型：选择题
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12. —Look at these tracks. It _____ be a wolf.
—It needn.t be. It _____ be a fox.( )(本题3.5分)
A、 must; could
B、 may; might
C、 need; must
D、 could; need