Every means___________ tried but without much result.
举一反三
- Every means ______ tried but without much result.
- Every means ______ tried but to no end.
- Every possible means ______. A: has tried B: has been tried C: was tried D: were tried
- Every means ________ been tried ever since the machine brake down.
- Every means ______ tried, but in vain. A: have been B: has been C: are D: is