—Have you handed in your school-work yet? —Yes, I have. I guess it          now.
#100106
A
has graded
B
is graded
C
is being graded
D
is grading
推荐题目
— Why does this village develop so slowly?— Because large quantities of money       .
#102228
A
have wasted
B
is being wasted
C
has keen wasted
D
have been wasted
The water will be polluted unless some measures _____.
#103340
A
will be taken
B
are being taken
C
are taken
D
were taken
I ___ a Leaguage member for six years.
#104490
A
become
B
have become
C
came
D
have been