We on it for several hours but we haven't yet reached any conclusion.
#99883
A
are working
B
work
C
have been worked
D
have been working
推荐题目
—Mr. Hu, have you finished correcting the papers?—Not yet, the papers _______. You _______ get the results from me by tomorrow.
#100574
A
are corrected; will
B
are being correcting; should
C
are being corrected; shall
D
are being corrected; would
At the time of the earthquake Jeff was still in his office. He ________ to finish a project before he left for the day.
#104776
A
has tried
B
had tried
C
has been trying
D
had been trying
I picked up a paper at random , _____ through the headlines and put it where it had been .
#103706
A
looking
B
looked
C
to look
D
and looked
—Hi, Susan, you look tired.—I ______ for months for the coming celebration for the school’s 60th anniversary.
#101623
A
was preparing
B
have been preparing
C
had prepared
D
prepare