问题
选择题
– Have you decided how to spend your next day off?
– Not yet. We ________ join the school volunteer project.
A. may B. should C. must
答案
答案：A
题目分析：A. may 可能，B. should应该，C. must 一定，句意：你决定怎么花费明天的假期了吗？还没有，我可能会加入学校的志愿者项目。故选A。