помогите переделать из активного в пассивный залог (заранее благодарю :) )

1)the streets are being repared by them this month 2)the course will be finished by the students in July 3)that skyscraper was built by them in 1934 4) the new product design has been finished by them 5) you might be seen by sheila tomorrow 6)you will be meeted at the airport by harry 7)shoes are made in that factory by them 8)those faxes have to be sent today 9)bicycles mustn't be left in the driveway 10)the dinner was being cooked by them when i arrived 11)the preparations had been finished by the time the guests arrived

1.They are repairing the streets this month.
2.The students will finish the course in July. - The course will be finished by the students in July.
3.They built that skyscraper in 1934 - That skyscraper was built in 1934 (by them.)
4.They have finished the new product design. - The new product design has been finished (by them.)
5.Sheila might come to see you tomorrow. - You might be visited by Sheila tomorrow.
6.Harry will meet you at the airport. - You will be MET by Harry at the airport.
7.They make shoes in that factory. - Shoes are made in that factory (by them.)
8.Those faxes have to be -- sent today. - ---------------------
9.People must not leave bicycles in the driveway - Bicycles mustn't be left in the driveway by people.
10,They were cooking dinner when I arrived. - When I arrived, dinner was being cooked (by them.)
11.They had finished the preparations by the time the guests arrived. - The preparations had been finished by the time the guests arrived.