VI . Read the following passage and do the tasks below . ( 5 câu ) In most English - speaking countries , it is traditional to sing the song -Happy Birthday You to the honored person celebrating his birthday . The Happy Birthday song melody is thought to be the most frequently sung melody in the world . This happens traditionally at a birthday party while someone brings a birthday cake into the room . The birthday cake is traditionally highly decorated , and typically covered with candles when presented ; the number of candles often equals the age of the person . The person whose birthday it is makes a silent wish and then blows out the candles , if done in one breath , the wish is supposed to come true , but only if the person keeps the wish to himself . Typical birthday party decorations include balloons , streamers , and confetti . For special birthdays , the number of candles might be substituted for the individual candles . These candles are in the shape of a numeral ; for example , on the fifth birthday there may be one candle on the cake in the shape of the numeral 5 , and on the fiftieth birthday there may be two candles on the cake , one in the shape of the numeral 5 followed by the other in the shape of the numeral 0 . Câu 16. Where is the song -Happy Birthday to Youl sung ? Câu 17. What is the traditional birthday cake like ? Câu 18. What does the number of the candles on the birthday cake mean ? Câu 19. What does the person whose birthday it is often do before cutting the birthday cake ? Câu 20. What do typical birthday party decorations include