Look at the list of questions. Then watch or listen to people guessing the answers. Which of the questions do they answer? (Nhìn vào danh sách các câu hỏi. Sau đó xem hoặc nghe mọi người đoán câu trả lời. Họ trả lời câu hỏi nào?)
1. How long does a butterfly live?
2. How many people live in Vièt Nam?
3. How much does an sisphant weigh?
4. How fast can the world's fastest car go?
5. How many minutes are there in a lifetime?
6. How tall is the world's smallest person?
7. How many countries and languages are there in the world?
