作业帮It __is_________(be) three years since Lily joined the Green.为什么不是 has been
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It __is_________(be) three years since Lily joined the Green.为什么不是 has been
It __is_________(be) three years since Lily joined the Green.
为什么不是 has been
It __is_________(be) three years since Lily joined the Green.为什么不是 has been
it is ..since 结构意为“从...起已经多长时间了” 可与 it has been ..since替换
基本上没有区别，可以用has been。
It __is_________(be) three years since Lily joined the Green.为什么不是 has been
it will be will
Someday,it will be.
it needn't be
when will it be
It Must Be?歌词
how can it be..
could it be歌词
It sucks to be...
it must be
It will be much
it could be better.
Could It Be 歌词
it will be said
it would be 歌词
be that as it
it s gonna be
wouldn't it be