吉林省吉林一中2009--2010学年度高一下学期第一次质量检测

适用年级：高一
试卷号：48913

试卷类型：月考
试卷考试时间：2017/7/19

1.单项选择(共1题)

---Is Jack on duty today?
---It ________ be him. It's his turn tomorrow.
A．mustn't B. won't C. can't D. needn't

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