It is years since his death.翻译下上面这个句子和It has been years since his death.意思一样吗?

It is five years since he smoked it is ...since ..为什么不用完成时it is 100 years since Qinghua university was found. It is years since we meet last time.（纠错） It is three years since she was in the It is ten years since he ____(join) the army it is 3 years since Tom has been abroad It is forty years since he home 改为间单句 it is years since i saw him（追加）it is years since i saw him为什么不说it is years since i has seen him而it was years since i had seen him 却可以 it is two years since I came here还是it has been two years since I came here 求It is three years since he worked in his office.解释下since it's years since i He smoked since 2 years ago .怎么翻译?等不等于It is 2 years since he smoked. It is ten years since his father died..同意句his grandpa ------- -------- ------- -------ten years ago It is five years since we began learning English既然有since为什么要用it is? 英语翻译It is 3 years since they got marriedIt is 3 years since they married求翻译.为什么都是since可意思完全不一样诶 it is five years since we began learing English 为什么是it was it is five years since we began learing English 为什么不是it was 翻译It is 5 years since that ...I keep it in my