— Is that Mr Black in the playground? — It ________ be Mr Black. He’s teaching English in the classr...
2022-09-27 01:10:38 175次 天津市南开区2019届九年级第二学期中考一模英语试卷 单选题 反馈错误 加入收藏 正确率 : 100%
题目内容：
— Is that Mr Black in the playground?
— It ________ be Mr Black. He’s teaching English in the classroom.
A. must B. can’t C. could D. needn’t
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