1. they recommended opening a new factory in our own . They recommended a new fatory should be opened in our own;2.they say he is a spy ; 3. they say he was a spy; 4. It is a duty to obey him ; 5. we added up the money and found that it was correct ; 6. i'm employing a man to clean the bathroom ; 7. Someone seemed to have made a terrible mistake; 8. It is your duty tomake tea at 7 o'clock ; 8. Some one saw him pick up the gun ; 9. you needn't have done this word ; 10. It is too , you had better asked your tailor to take it in ; 11. Don't touch this switch ; 12. You have to see it to believe it; 13. You will have to get someone to see to it; 14. It is inpossible to do it viết lại câu dạng bị động giúp mk nha