对哪个部分提问? 如果是讲整个句子改成一般疑问句,那应该是：do you often play football? 如果是对"i"提问,那应该是：who often play football? 如果是对"often"提问,那应该是：how often do you play football? 如果是对"play“提问,那应该是：what do you often do with the football? 如果是对"football"提问,那应该是：what do you often play? 如果是对"play football"提问,那应该是：what do you often do ?
