- Tom, where is your father? - I’m not sure. He _______ in his office. A. must be B. may be C. maybe...
2023-02-03 01:59:17 181次 2013-2014学年甘肃省金昌市九年级上学期期中考试英语试卷（解析版） 单项填空 反馈错误 加入收藏 正确率 : 100%
题目内容：
- Tom, where is your father?
- I’m not sure. He _______ in his office.
A. must be B. may be C. maybe D. need be
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