Viết lại câu sao cho nghĩa không đổi 1. Nam worked hard because he didn't wanted his parents to feel unhappy. (Nam worked hard so that) 2. Don't tell anyone about my secret.(I woud) 3. Taking part in social activities in her free time is her pleasure (She is) 4. Because of his carelessness, he had an accident on Thai Ha street (Because he) 5. Nam is the most confident boy I have ever met (I have never) 6. The interesting live show attracted millions of viewers (The live show)