-- 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
— Is the meeting held in Room 302 or 303 ?— It should be 302. But I hear that it _____ till tomorrow.
#63790
A
was put off
B
will put off
C
has been put off
D
is put off
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
I got caught in the rain and my suit _______.
#63795
A
has ruined
B
had ruined
C
has been ruined
D
had been ruined
—Look! Someone ________ the floor.—Well, it wasn't me. I went shopping just now.
#63763
A
had swept
B
has swept
C
was sweeping
D
is sweeping