Three months has passed before we learnt the death of the president.Three monthshas passed before we learnt the death of the president..这句话有时态上面的错误么?

Kate has been making a film for three months.针对 for three months划线提问. Three months has passed since he moved to this first three months Three months ________ a long time for me.A.isB.areC.haveD.has The old man has lived in this village for three months同义句 my sister has been staying in beijing for three months.这是什么时态,翻译 for,been,has,three,she,beijing,to,months.连词成句向网友问 He was out of work for three months与He has been out of work for three months有什么不同? He bought the car three months ago.同义句改写He has had the car for three months.为什么用had,不用been? he( )Luzhou for three months.A.has left B.has come to C.has gone to D.has been away from 应该选哪个? Three months __ since he __ hereA have passed;leftB has passed;leftC has past;has leftD has passed;was away Only three more months to three months later中文是什么意思 是three-month还是 three-months对 His health has ____from overwork in the past three months.选项:a、broken upb、broken downc、broken throughd、broken in The baby is three months old.It has only a little____.A,teeth.B,jobs.C,rules.D,hair my sister _______(stay)in Beijing for three months last year为什么用stayed不用has been staying it has been three months since he left his home(4个同义句)并说一下解释