10. What are they doing at the moment?
What is being done at the moment?
11. The boy's friend is teaching him to play the guitar.
He is being taught to play the guitar by his friend.
12. Her mother is preparing the dinner in the kitchen.
The dinner is being prepared in the kitchen by her mother.
13. She is bringing some cups of tea to the visitors in the next room.
Some cups of tea are being brought to the visitors in the next room.
14 The secretary isn't taking the note to the manager.
The note isn't being taken to the manager by the secretary.
15. Students are doing a lot of homework for the coming exams.
A lot of homework is being done for the coming exams