Directions: for this part, you are allowed 30 minutes to write a short essay on the challenges of living in a big city. You should write at least 120 words but no more than 180 words.Nowadays, the global trend of urban migration seems unstoppable. For many people, the term big city is synonymous with services, resources and job opportunities. But they need to be aware that urban life is challenging as well. Probably the most daunting problem is ever-higher house prices pushed by a growin
