it was done 和 It has been done 的区别

it was done 和 It has been done 的区别 has been done和has done的具体区别 it has been done 谓语 was done和was been done的区别 was done和had been done的区别 having been done和done的区别 has been done,had been done 的区别是什么? have done 和 has done 的区别 关于having been done 和 have been done的区别 having been done和have been done的区别 having been done和had been done的区别 has been done 和has been 区别是什么