Bài 4 Chuyển những câu trực tiếp dưới dây thành câu gián tiếp.
1. Many doctor say:" Teenagers undergo many physical and mental changes during their puberty".
2. Peter said:" I am looking forward to my grandfather's gift".
3. "Mr. Brown owns two cars and three houses". Jim said.
4. She said to me:" I can't do it by myself".
5. "I have just received a postcard from my foreign friend." Ann said to me.