将下列句子改为被动语态（英语）:要保证100%对哦!!!!!3Q)

1 The house have been paited by them
2 He said a piece of paper had been left for Lucy by him
3 A great number of universities have been rstablished by our country since 1949
4 A few jobs had been taken by Tim since he last his first job.
5 A new robot has been designed by scientists
6 Diamond was found by people in Bazil in 1971

1. The house has been painted by them.
2. The piece of paper was left by him for Lucy.
3. A great number of universities were establish by our country since 1949.
4. A few jobs was taken by Tim since he lost his first job.
5. A new robot was designed by scientists.
6. Diamonds were found in Brazil by us in 1971.

--保证全对！放心使用！

1.The house has been painted by them.
2.The piece of paper has been left for Lucy
3.A great number of universities have been established by our country since 1949
4.A few jobs had been taken by Tim since he lost his first job
5.A new robot has been designed by scientists
6.Diamond was found in Brazil by people in 1971

1. The house has been painted.
2. He said a piece of paper had been left for Lucy by him.
3. A great number of universities have been established by our country since 1949.
4. A few jobs had been taken since Tim last his first job.
5. A new robot have been designed by scientists.
6. Diamond was found in Bazil in 1971.

the house has been painted by them
he said that the piece of paper for Lucy had been left
since 1949 a great number of universities have been established by our country
a few jobs had been taken by Tim since he last his first job
a new robothave have been designed scientists
diamond was found by People in Bazil in1971

啊,我辛辛苦苦打了那么多没想到重复了!高手真多啊!!!!!!!!!!!!!!!!!!!!!!!!!!!