— ______ do you have the drawing lessons? The pictures you draw are so beautiful.                              
— Once a week. I began having drawing lessons at the age of five.

盐城东台西瓜以其独特的地理位置、优越的土壤条件、丰富的种植经验形成了自由的风味特色，受到越来越多消费者的喜爱，已发展成为优势产业．请据图回答有关问题：

读北方地区图，完成下列要求．