Question

Помогите пожалуйста.
Rewrite the sentences in the passive voice.
15. Somebody has stolen my umbrella.
16. Sarah is cleaning the room at the moment.
17. They cancelled all flights because of fog. 18. Volunteers have recently monitored these endangered animals.
19.Every month, thousands of tourists visit these waterfalls are.​

Answer 1

15 Mu umbrella has been stollen by somebody.
16 The room is being cleaned by Sarah at the moment.
17 All flights were cancelled because of fog.
18 These endangered animals have been recently monitored by volunteers.
19. These waterfalls are visited by thousands of tourists every month.