for a long period of time可以用什么替换?

for a long period of time可以用什么替换? for a long period 什么意思? Why silent for a period of time Agreement for a period of six months! Many years ago,Jane------in the flat with her grandema for a long period of time.A.has been livingB.lived为什么不是A?for a long period of time不是表示延续的一段时间么?不应该是完成时? stonehenge was built slowly over a long period of Ten weeks.Such a long period of time.怎么翻译? FOR LONG OF A LONG OF from tomorrow on us apart for a period of time many years ago jim__with her mum for a long period of time Ahad been living B had lived C lived选哪个?急 miss a period of A period of five many years ago ,Jane ________ in the flat with her grandma for a long period of timeA.had been livingB.lived既然有for a long period of time,为什么不能选A,表示在这一段时间·····这一意思呢?有for出现也可以用一般现在 A holiday is very---after a long period of work.A.welcomedB.welcomeC.a welcomeD.welcoming Aftre the death of his wife ,for a long period of time,he_sit by the window for hours doing nothingA.should B.could C.would D.might为什么选C 商务英文翻译Revenue: Result from the sales of products or service for a period of time.Expense: Costs incurred to generate revenues for a period of time. over a period of time 英语翻译2.BackgroundBeing an element in the national economy and political system,telecommunications reformcannot be carried out independently of a macro reform program.For a long period China strictly adhered to a socialist regime that excluded