Change into passive voice( đổi sang trực tiếp , gián tiếp , xác định thì của câu đó là gì ?) 13. I'm going to have Harry to fix the roof of my house. ........................................................................................................................................................................... 14. Their grandmother told them this story when they visited her last week. ........................................................................................................................................................................... ........................................................................................................................................................................... 15. Tim ordered this train ticket for his mother. ........................................................................................................................................................................... ........................................................................................................................................................................... 16. I lost my keys. I must have somebody make the other keys. ........................................................................................................................................................................... 17. Ross has Joey babysit his son when he is away. ........................................................................................................................................................................... 18. You didn't show me the special camera. ........................................................................................................................................................................... ...........................................................................................................................................................................