—Have you handed in your school-work yet
问题:
—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
—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