Every means ________ been tried ever since the machine brake down.
has
举一反三
- Every possible means ______. A: has tried B: has been tried C: was tried D: were tried
- Every means ______ tried, but in vain. A: have been B: has been C: are D: is
- Every means ______ tried but to no end.
- All possible means ，but not a means an obvious effect。 A: have been tried; has B: have tried; has C: has been tried; have D: have been tried; have
- Every means ______ tried but without much result.
内容
- 0
This __________ has been handed down since the 18th century.
- 1
Work has been (pile) _______ up ever since the first day.
- 2
The machine needs a complete _____since it has been in use for over ten years.
- 3
There is not a ground for negotiation, since our suggestions have been turned down by the Board of Directors. A: not a B: for C: since D: turned down
- 4
The Conservative and the Labour parties have been in power by turns ever since the end of __________.