is used to doing sth 习惯于做某事
is used to 在这是个习语为什么不适用 否定呢No , 在这里是表示“没迟到”He's seldom late for school 本省就是否定啊 再有个no不是说它是迟到了吗？你不要管问句是怎么样问， 你只按事实回答就是， 这就是英语和汉语不同的地方。见下：He's seldom late for school, 【is he】? — No. He is used to going to school earlyHe'slate for school, 【isn't he】? — No. He is used to going to school early