It ___six years since his grandfather died.为什么?

It ___six years since his grandfather died.为什么? It is __every Sunday evening ___six thirty.填介词 ___six years since i___to study English.如题.A.It is；beganB.I have been；begunC.There are；beganD.It was；begin如果知道能不能告诉我原因,为什么选这个... 改为同义句：He began to learn english when he was six years old.He began to learn english ___ ___ ___ ___six.(每空一词） This morning I went to the English corner which is in the park near my home.It is three years sinc It start many years since+瞬间性动词的疑问It is two years since you come to see me.It is two years since you come here.since后面+的都是瞬间性动词,但第一句表示的是否定,两年没看了,第二句表示的是肯定来了两年了.请问这个sinc It was 85 years还是 it has been 85 years? it's years since i since 3 years ago.是时间点还是时间段3 years ago.是时间点还是时间段.2.since 1985 是时间点 还是时间段?3.It is +一段时间+ since从句.怎么翻译?自从.已经多少年了》?是这样翻译吗我在网上查的说，sinc In the course of the meeting,it was suggested that our discussion __________ down.阶一In the course of the meeting,it was suggested that our discussion __________ down.was written should write wrote be written It has been more than three years sinc It took them ten years ------- the bridge It three years since I smoked.翻译 It was three years before he came It is five years since he smoked It's over 900 years old. it was about 100 years ago What will it be six years