сделайте предложения в Passive Voice

Question

Сделать В Passive Voice 
Mary sang a beautiful song at the concert yesterday. 
We wash the floor on Saturday. 
Pupils learn 4 foreign languages at our school. 
The teacher turned on the light in the classroom. 
I cleaned the carpets with the vacuum cleanner yesterday.

Егор · Accepted Answer

a beautiful song was sung at the concert yesterday by Mary 
 the floor was washed on Saturday by us 
 4 foreign languages are learnt at our school by pupils 
the light was turned on in the classroom by the teacher. 
 the carpets were cleaned with the vacuum cleaner yesterday by me.

Юлия · Answer

was sung 
were wash 
are learnt 
was turned 
were cleaned