1.将be动词和not 缩写,放句首提问:Aren't you Tom?你难道不是Tom? 2.将情态动词和not 缩写,放句首提问:Can't you be quiet?你难道就不能安静点? 3.将do 和not 缩写,放句首提问:Lili has gone abroad.Don't you know?Lili 出国了,难道你不知道? 将does 和not 缩写,放句首提问:Doesn't he like mutton?难道他不喜欢吃羊肉? 将did 和 not 缩写,放句首提问:Didn't you listen to the teacher?你难道没听老师说?
两句都正确的。第一句是把did not分开写的,而第二句是把did not连在一起写的。个人认为,第二句更常用的。如:Why didn't you leave yesterday?要比Why did you not leave yesterday?更常见,更口语化。还有许多的:do not ——don'tdoes not——doesn'twill not——won'tshall not——shan'tcan not——can't