When we got to the cinema, there were no tickets left. We should have booked . A. in the end B. in a...
2022-11-13 06:35:49 24次 2014年译林牛津版高中英语必修二第二单元练习卷（解析版） 单项填空 反馈错误 加入收藏 正确率 : 100%
题目内容：
When we got to the cinema, there were no tickets left. We should have booked .
A. in the end B. in advance
C. before long D. long before
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