Change the sentences into the passive voice. 1. they have to dig their garden. 2. they should translate the poem quickly. 3. you ought to brush your teeth twice a day. 4. people must obey the laws. 5. i must dust the furniture immediately. 6. she can eat three ice creams at once. 7. they ought to visit their granny twice a week. 8. you must cross the street by the zebra. 9. they should send the fax to jim. 10. they can invite a famous pop group to our party.