Has all_can be done Awhat,done Bthat,been done Cthat,be done
Has all_can be done Awhat,done Bthat,been done Cthat,be done
all that can be done has been done
Everything that can be done has been done,___?
Has all that can be done been done?
all that can be done has been done.
must have been done/must be done
all that can be done been done.
have been done 和 to be done
Everything can be done has been done.请问这里can be done 用的是什么时态
can be done was done could be done must have been done will
To be done being done
have done/to be done