have/has not heard
have/has not heard
we have not heard from them____last month
-----Have you heard _______your father?------Not yet.
has heard
____Beijing,his mother has not heard from him
i did not hear \ i have not heard \ i have not been hearing
not,time,Tom,we,for,from,a,heard,long,have
i have not heard ( )you for a long time
I have not heard from her so far.翻译
I do not think you have ever heard of him,( )
When I have not heard, you do not have any burden.You still
sb have/has done have/has not done have/has sb done What hav