Our monitor requested that ________.A.all the class studied more carefully the problemB.the problem was more carefully studiedC.with great care the problem could be studiedD.all the class study the problem more carefully
网友回答
D解析考查虚拟语气。request that sb (should) do sth要求某人做某事；句意：我们的班长要求所有的学生都要更仔细的研究这个问题。