高中英语必修二21页第二题的答案？
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1.A new persona computer has been bought by my friend.
2.My computer has been repaired by the shop very quickly.
3.My computer has just been attacked by an unknown virus.
4.The problem hasn't been solved yet.
5.The company's computer has been given away to a local school .
6.A kind of intelligent robot has been developed by the scientists.
2.My computer has been repaired by the shop very quickly.
3.My computer has just been attacked by an unknown virus.
4.The problem hasn't been solved yet.
5.The company's computer has been given away to a local school .
6.A kind of intelligent robot has been developed by the scientists.
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