2. Change the sentences into Yes / No questions. (Thay đổi các câu thành dạng câu hỏi "Yes / No".) 1. My mother can make a costume for me. 2. She will bake a birthday cake for him. 3. The dragon dances are interesting. 4. The Rio Carnival takes place every year in Brazil. 5. They saw a fireworks display on New Year's Eve.