hasbeen done是什么時態(tài)

　　I find it ludicrous that nothing has been done to protect passengers from fire

　　乘客沒有受到任何防火保護，這讓我覺得十分荒唐。

　　This has been done by plundering  4 billion from the Government reserves.

　　這是通過侵占40億英鎊的政府儲備金完成的。

　　She was born with a silver spoon in her mouth and everything has been done for her.

　　她出生于富貴人家，什么事都已為她安排得好好的。

　　This job has been done well.

　　這活干得挺像樣子。

　　The work has been done as per instructions.

　　工作已按指示完成。