Their bikes were being repaired by someone ( by someone не обязательно).
Are the passports being checked?
The satellite dish was being fixed at 7 p.m yesterday.
A new quiz show is being presented.
The law of Gravity was discovered.
The house was being built when we returned to the town.
Some nice musicals were composed.
TV was being turned off while i came in the room.
Fliers were handed out last week.
The soap opera on TV is being watching at this very moment.
A variety of people is usually interviewed.