There have been no leeters from my parents since I left home two years ago.There have been 什么意思```如果是there BE句型和现在完成时```那是不是还少个be
问题描述：
There have been no leeters from my parents since I left home two years ago.
There have been 什么意思```如果是there BE句型和现在完成时```那是不是还少个be
答
不少了...
自从两年前我离开家,一直没有受到来自父母的信.
过去完成?
答
句中含有since要用完成时
句子意思是：自从我两年前离开家后我父母就没给我写过信了。
答
there be 句型也有现在完成时
就是There have been