The Governor demanded that all the proposals on May 1st.
A. must be submitted
B. be submitted
C. submitted
D. were submitted
网友回答
A. must be submitted
(答案→)B. be submitted
C. submitted
D. were submitted
解析：考查虚拟语气。根据句中demand要求，从句用should+ v原形的虚拟语气，should可以省略。句意：管理者要求所有的建议在5月1日提交。