Bài 19: Đọc đoạn văn sau và trả lời câu hỏi. Square cake (Banh Chung) is one of the most popular and tasty traditional vietnamese food, It is an essential part of Vietnamese cuisine and culture. Vietnamese people never forget to make or buy some Square cakes in the Tet Holidays and King Hung's anniversary. They believe that itis the best way to show gratitude to their ancestors and homeland. People place Square cakes in the family altars so as to honor the ancestors and pray them to support the family in the new year. Almost all Vietnamese children know about the legend and origin of this traditional dish.This cake was invented by the 18'1' Prince of Hung Emperor. 3,000-4,000 years ago, Prince Lang Lieu, made round and square cakes and brought them to the King. He explained the meaning of the cakes to his father: the round cake was the symbol of the sky and the Square cake was the symbol of the Earth. In the old belief of Vietnamese people, the Earth is square, so this cake's shape is square, too. Because of the special meaning and delicious taste of the cakes, Lang Lieu became the next Emperor. Since then, in honor of this 18th Prince, Vietnamese people always make and have Square cake in the Lunar New Year. It has become the soul of Vietnamese New Year. 1. According to the pasage, what is an essential part of Vietnamese cuisine and culture? ______________________________________________________________________ 2. Where do people place Square cakes to honor the ancestors? ______________________________________________________________________ 3. Who invented the cake? ______________________________________________________________________ 4. According to the old belief of the vietnamese, what was the shape of the Earth? ______________________________________________________________________ 5. Why could Lang Lieu become the next Emperor? ______________________________________________________________________