for a long period 什么意思?

for a long period 什么意思? for a long period of time可以用什么替换? 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? so long 和for a long time 有什么区别 Why silent for a period of time Agreement for a period of six months! stonehenge was built slowly over a long period of Ten weeks.Such a long period of time.怎么翻译? 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 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 think for a long for long 和 for a long time一样吗在疑问句中用什么 for long time for long weeks for long hours for long daysfor long time for long weeks for long hours for long days有什么区别. We have been waiting here a long time for the guest.句中a long time 做什么成分?能用long time,the long time,some long time stay a long time与stay for a long time有什么区别请讲清楚. A holiday is very---after a long period of work.A.welcomedB.welcomeC.a welcomeD.welcoming from tomorrow on us apart for a period of time Will you love me for a long time?什么意思?