5.---Have you handed in your schoolwork yet?  ---Yes,I have. I guess it ____ now. 
#105345
A
has graded
B
is graded
C
is being graded
D
is grading
推荐题目
Although the causes of cancer ____we do not yet have any practical way to prevent it.
#105341
A
are being uncovered
B
have been uncovering
C
are uncovering
D
have uncovered
一Have you handed in your schoolwork yet?一Yes,I have.I guess it _____ now.
#105339
A
has graded
B
is graded
C
is being graded
D
is grading
How happy we are! The holiday we have been looking forward ________at last.
#105324
A
to has come
B
to have come
C
to having come
D
has come