what is your school day?We start work at nine o'clock.的特殊疑问句是？when do you start work?We start work at nine o'clock.的一般疑问句是？和否定句。Do you start work at nine o'clock?We don't start work at nine o'clock.They go to the playground and play football.的特殊疑问句，一般疑问句，否定句。帮个忙，谢谢。who go to the playground and play football？Do they go to the playground and play football？They don't go to the playground and play football。