-- May I go to the concert with you? -- I’m afraid not ____ you have a ticket, because I have only o...
2023-02-02 11:56:53 62次 2013学年浙江省舟山市九年级第一学期期末英语试卷（解析版） 单项填空 反馈错误 加入收藏 正确率 : 100%
题目内容：
-- May I go to the concert with you?
-- I’m afraid not ____ you have a ticket, because I have only one.
A. since B. if
C. unless D. though
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