答案：1. When's Ross's birthday? It's on the eleventh of August. What does he like? He likes elephants, jiaozi and Dragon Boat Festival. What does he usually do at weekends? He usually watches TV and plays football.
2. When's Mary's birthday? It's on the ninth of May. What does she like? She likes green, apples and Mid-Autumn Festival. What does she usually do at weekends? She usually rides a bike and washes clothes.
3. When's John's birthday? It's on the thirty-first of July. What does he like? He likes grapes, sandwiches and Christmas. What does he usually do at weekends? He usually skates and washes the dishes.
4. When's Lily's birthday? It's on the twenty-fifth of November. What does she like? She likes running, autumn and Spring Festival. What does she usually do at weekends? She usually cooks and plays table tennis.
解析：直接根据表格信息回答问题，注意日期表达和第三人称单数形式。