题目内容

---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

练习册系列答案
相关题目

违法和不良信息举报电话:027-86699610 举报邮箱:58377363@163.com

精英家教网