-- I have got a headache. -- No wonder. You_________ on the math exercises too long.
#63776
A
work
B
are working
C
have been working
D
worked
推荐题目
The world's first flying car has been ________ for sale at ￡800,000 by Courtesy Aircraft of the US.
#63765
A
taken up
B
put up
C
pulled up
D
made up
Minister Bill De Blasio in office fewer than 48 hours when he came face to face with his biggest challenge in his life．
#63755
A
has been
B
had been
C
would be
D
is
Years of fighting have ______ the area ______.
#63754
A
remained; in ruins
B
left; in ruins
C
remained; in ruin
D
left; in ruin
The house is dirty because it ________ since they moved out.
#63759
A
doesn't clean
B
isn't cleaned
C
hasn't cleaned
D
hasn't been cleaned
—Why do you charge me so much for such a simple meal! I wonder if you got mistaken. —Oh, I have _______ in your bill the cost of the expensive plate you broke just now.
#63753
A
released
B
included
C
contained
D
covered