1. How many school are involved in collecting money for charity? - специальный вопрос
2. What are a lot of school involved in? - специальный воппрос
3. are a lot of school involved in collecting money for charity? - общий вопрос
4. a lot of school in my hometown are involved in collecting money for charity, aren't they? - разделительный вопрос
5. where are a lot of scool involved in collecting money for charity? - специальный