问题
选择题
–Have you handed in your schoolwork yet?
--Yes, I have. I guess it ________ now.
A．has graded
B．is graded
C．is being graded
D．is grading
答案
答案：C
题目分析：句意：你的作业交了吗？--是，交了，我猜现在正在被批改。因为时间是now，而且schoolwork和grade是被动关系，用现在进行时的被动，所以选C。