---Who is knocking on the door? ---It ____ be the milkman. He sends the milk to me every day. A. sho...
2022-09-27 12:56:39 33次 江苏省无锡市锡北片2019届九年级3月模拟考试英语试卷 单选题 反馈错误 加入收藏 正确率 : 100%
题目内容：
---Who is knocking on the door?
---It ____ be the milkman. He sends the milk to me every day.
A. should B. can’t C. must D. need
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