помогите нужно переписать предложения в пассивном залоге: 1) They will read this book next term 2) they are building a new ring road round the city 3) somebody is cleaning the room at the moment 4) they cancelled all flights because of fog 5) i didn't realize that someone was recording our conservation 6) they have chaged the date of the meeting 7)dan told me that somebody had attacked him in the street