Every possible means ________, but the teacher as well as the students ________ found a solution to the problem yet. 
#102485
A
has been tried; hasn’t
B
has tried; haven’t
C
have tried; haven’t
D
have been tried; hasn’t
推荐题目
The farm as well as its neighboring hills we once spent so much time ___ a new look recently.
#102060
A
on has taken
B
has taken
C
on having taking
D
having taken
So hot a day! I would buy one soft-drink can, but I _____ money on me. 
#102682
A
didn’t have
B
don’t have
C
hadn’t had
D
won’t have
—Can you give me the right answer?-─Sorry I____________ .Would you repeat the question?
#102626
A
hadn’t listen
B
haven’t listened
C
don’t listen
D
wasn’t listening