请将下列英语句子改成现在完成时的被动语态.1:My friend has bought a new personal computer.2:The shop has repaired my computer very quickly.3:An unknown virus has just attacked my computer.4:We have not solved the problem yet.5:The company has given its computers away to a local school.6:The scientists have developed a kind of intelligent robot.
问题描述：
请将下列英语句子改成现在完成时的被动语态.
1:My friend has bought a new personal computer.
2:The shop has repaired my computer very quickly.
3:An unknown virus has just attacked my computer.
4:We have not solved the problem yet.
5:The company has given its computers away to a local school.
6:The scientists have developed a kind of intelligent robot.
答
A new personal computer has been bought by my friend.My computer has been repaired by the shop very quickly.My computer has just been attacked by an unknown virus.The problem has not been solved by us...