【请将下列英语句子改成现在完成时的被动语态.1:Myfriendhasboughtanewpersonalcomputer.2:Theshophasrepairedmycomputerveryquickly.3:Anunknownvirushasjustattackedmycomputer.4:Wehavenotsolvedtheproblemyet.5:Thec】

　　请将下列英语句子改成现在完成时的被动语态.

　　1:Myfriendhasboughtanewpersonalcomputer.

　　2:Theshophasrepairedmycomputerveryquickly.

　　3:Anunknownvirushasjustattackedmycomputer.

　　4:Wehavenotsolvedtheproblemyet.

　　5:Thecompanyhasgivenitscomputersawaytoalocalschool.

　　6:Thescientistshavedevelopedakindofintelligentrobot.