4. Change the following sentences into passive sentences using the words in brackets.a. We sell tickets for all shows at the Box Office. (Tickets for all shows/sell/at the Box Office)b. Thomas Edison invented the electric light bulb. (The electric light bulb/invent/by Thomas Edison)c. Someone painted the office last week. (The office/paint/last week)d. Several people saw the accident. (The accident/see/by several people)e. Where do they make these video recorders? (Where/these video recorders/make)