there used to be 一般疑问句是used there to be there used to be 一般疑问句是：Did there use to be...（对吗）there used to be 的否定句是：There didn't use to be...（对吗）

there used to be 一般疑问句是used there to be there used to be 一般疑问句是：Did there use to be...（对吗）there used to be 的否定句是：There didn't use to be...（对吗） there used to be的一般疑问句句式是什么样的? there used to be walls around the city of beijing改为一般疑问句 There used to be three telephones on the desk.(改为一般疑问句) there used to be的意思!RT, 请问 There used to be a park. ______ plenty of water in this river.A.There used to being B.there used to beC.There is used to beingD.There was used to be There used to be a clean river.为什么不是There used to have a clean river -------- a small book store in thistown.( they used to be ,it used to have ,there used to be ,there used to have) there be 和used tothere uesd to be a buiding here.变否定,一般疑问句及回答There didn't use to be a building here.Did there use to be a building here?Yes,there did.No,there didn't.还是There uesdn't to be a buiding here.There isn't uesd to There used to be.的反义疑问句是怎么样的? there be加used to 的反义疑问句是什么 There used to be some cities wall.的反义疑问句 there used to be an old ciname here,()/()()?反义疑问句 There used to be a lot of pandas,_______ ______? 谁能告诉我 有没有there is used to be there used to be a lot of manatees是什么意思 She used to be an English teacher.改为一般疑问句