谁能告诉我 有没有there is used to be

谁能告诉我 有没有there is used to be there be 和used to 英语.there used to be 谁能准确的告诉我 be used with 的意思? 有没有大神能告诉我there are still some things should be changed be used to do something 和be used for doing something有没有区别 be used to doing 有没有被动语态和现在完成时 地球科学（英文题）There is evidence that there used to be different c 有没有 there are going to be There used to be反意疑问句 there be句型用 used to 请问 There used to be a park.