He often watches TV on Sunday,他经常星期天在家看电视。否定句he doesn't often watch TV on Sunday。一般疑问句does have a film watch TV on Sunday?肯定回答yes,he does否定回答。No,he doesn't特殊疑问句。When does he often watch TV?他通常什么时候看电视what does he do on Sunday?他在星期天干什么?