If you _______ spit at all. please spit in the bucket provided. A. shall B. must C. should D. may
2022-11-29 10:26:35 113次 2013-2014学年云南省景洪市高三上学期期末考试英语试卷（解析版） 单项填空 反馈错误 加入收藏 正确率 : 100%
题目内容：
If you _______ spit at all. please spit in
the bucket provided.
A. shall B. must C.
should D. may
本题链接：
