Take a map of New York with you while traveling ________ you have a guide or know the city well. A.s...
2023-01-13 22:08:00 106次 2014-2015学年江苏泰兴实验初级中学九年级上第二次阶段考试英语试卷（解析版） 单项填空 反馈错误 加入收藏 正确率 : 100%
题目内容：
Take a map of New York with you while traveling ________ you have a guide or know the city well.
A.since B. if
C. unless D. because
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