题目

谁能解决一些英语问题?
一．Conge the following sentences into the present perfect passive voice
EXAMPLE : We have made a plan .------------------------------------ A plan has been made .
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.
4We 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 rob

提问时间：2020-11-23

答案

by后面的部分都可以省略的~
1 A new personal computer has been bought(by my friend)
2 My computer has been repaired very quickly (by the shop)
3 My computer has just been attacked (by an unkown virus)
4 The problem has not been solved yet
5 The company's computers have been given to a local school
6 A kind of intelligent rob has been developed.