—I want to ask Jack to help me with the party preparations. —Oh, he ________ be available. He’s busy...
2022-09-20 19:39:10 120次 重庆市校2018-2019学年九年级上学期期末英语试卷 单选题 反馈错误 加入收藏 正确率 : 100%
题目内容：
—I want to ask Jack to help me with the party preparations.
—Oh, he ________ be available. He’s busy with his research now.
A.mustn’t B.needn’t C.can’t D.shouldn’t
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