单选题 The general's command was that the soldiers ______ their fort and carry out more important tasks.
【正确答案】 B
【答案解析】[解析] 本题测试虚拟语气在表语从句中的用法。suggestion, proposal,request,order等名词后面的表语从句和同位语从句中,用“should+动词原形”表示虚拟语气,而且should常常省略。