Emergencies and unexpected situations happen all the time. A. may B. can C. must D. should
2022-11-16 08:23:56 51次 2013-2014学年福建省高三第二次模拟英语试卷（解析版） 单项填空 反馈错误 加入收藏 正确率 : 100%
题目内容：
Emergencies and unexpected situations happen all the time.
A. may B. can C. must D. should
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