问题
选择题
—Have you handed in your school-work yet?
—Yes, I have. I guess it now.
A．has graded
B．is graded
C．is being graded
D．is grading
答案
C
题目分析：考查时态语态：句意：你的作业交了吗？--是，已经交了，我猜现在正在被批改。因为时间是now，而且school-work和grade是被动关系，用现在进行时的被动语态，选C。