every means has been tried.Yet this machine ___

every means has been tried.Yet this machine ___ 改写句子Every means has been tried,yet this machine won't work. Every means has been tried since Every possible means ___.was tried has been tried.为什么不能选 Was 英语翻译还有Every means has been tried since then. More than one means has been tried. Every means _but without much result.A.have been tried B.has Every means has been tried,but we still can't bring the fire all possible means has been tried,but has any effect. [-A19] Every means _____ been tried ,and everything _____ we the machine has been recovered this every possible means_____.A.has tried B.has been tried C.was