When and where to have a picnic yetA are not decidedB has not decidedC have not been decidedD is not decidedyet不是完成时的标志么 那为什么不用完成时呢

when and where还是where and when when and where to build the new factory___yet when and where 为什么是同一概念? where and when to go is a question.where and when to go are question.哪句是对的? You Know How and When and Where and What To Say,帮我翻译下, When and where的意思 When and where to build the factory 后面谓语动词用单数还When and where to build the factory 后面谓语动词用单数还是复数? _____ we ever meet again I hope he remembers to thank me.A.If and when B.When and where C.If and what D.When and how who and who?when and where? 英语：用how,when,where,why就括号处提问1.My brother and I are going[to shool].2.He has his breakfast [at seven].3.Her sister answers the quertion [quickly].4.He is not here [because ha is ill]. Pain,and smile and continue to go,a　ha? they want to know when and where the boy ____.(bear)quick When and where to build the new school ___________ (not decide) yet . when and where to build the school谓语动词用什么 When and where to build the new school _______( not decide) yet. When and where to bulid the new factory ＿yet(not decide) When and where to build the factory is unknown.句子的主语是单数吗 When and where to go for the holiday__?___yet.请问问号那里填写什么. when and where to go for holiday have not been decided yet.这句是用have还是has