Chuyển đổi câu và hoàn thành các câu sau đây
1. Mai said that she would hand her assignment to the teacher the following day. 2. Lan asked Mai how often she visited her grandparents. 3. As soon as I see him tomorrow, I will give him your letter. 4. These rooms are new and theirs. 5. These books are hers. 6. They said they can stay out late tonight.