every means has been tried.Yet this machine ___a.won't work b.doesn't work 为何选A不选B?

Every means has been tried since 英语翻译还有Every means has been tried since then. means单复数问题Every means( )tried but without much result.答案填“has been”为什么不用have been every means ___tired to solve theproblem,but none of them worked A has B has been Chave Dhave been Every possible means -----,but none proves successful.A.has been triedB.tried 选择：Every possible means ( ) to prevent the air pollutionis used?are used?has been used?have been used? Every means ____ tired out but without much resultA have been B has been C are D is怎样翻译 .Every means tried____ but without much result.a.has been b.have been　c.are d.is为什么选A Every possible means _______ to save the wounded hero up to now.Every possible means _______ to save the wounded hero up to now.A.have tried B.has tried C.have been tried D.has been tried Every means _but without much result.A.have been tried B.has been tried C.have tried D has tried.选哪个,为什么? Every means has been tried,but we still can't bring the fire under control 帮忙翻译下哈 改写句子Every means has been tried,yet this machine won't work.Every means has been tried,yet this machine won't work.句子可以写成：-Every means tried,yet this machine won't work为什么可以省略has been More than one means has been tried. [-A19] Every means _____ been tried ,and everything _____ well now.A.have ; go B.has ; go C.has; goes D.have ; goes翻译并分析 请教个语法知识.我英语语法很差.1、Every possible means has been tried,but none worked.2、All possible means have been tried,but none worked.为什么第一句中用has been ,第二句中用have been、?请分析下,另外been前加has/ every means has been tried.Yet this machine ___a.won't work b.doesn't work 为何选A不选B? Every possible ________ has been tried to help those less developed students.A ways B methodsC manners D means此题为什么答案选D, facing the economic depression ,every possible means( )this year to save the company from going bankrupt.A.has been tried B.has tried C.have been tried D.have tried这里为什么选c