问题
选择题
Our monitor requested that ________.
A．all the class studied more carefully the problem
B．the problem was more carefully studied
C．with great care the problem could be studied
D．all the class study the problem more carefully
答案
答案：D
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。