There uesd to be a lot of chemical plants in the south,but many of them have been closed or are ? be closed. A to B supposed to说明原因

There uesd to be a school here ,------ A usen't there Bdidn't there C used it怎么判断 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 be uesd to doing 是什么意思 be uesd to do/doing区别 不是uesd to do 我有点迷糊..Xi‘an（）the capital of old china.A.are uesd to be B.was used to having C.uesd to be D.uesd to being There uesd to be a lot of chemical plants in the south,but many of them have been closed or are ? be closed. A to B supposed to说明原因 after ten years she changed a lot and looked different from ___she uesd to be be used to do 和be uesd for 的区别 there uesd to be (be)some small coal mines(煤矿)here,didn't there?Yes,there_(do),they were closed by the government last year. used to be和uesd to have 的区别 be uesd to do sth.顺便造5个句子 kill my uesd to be 这句话有没有问题? 一道单选,说明理由!Bamboo and silk _____making kites.A uesd forB are uesd toC are uesd forD uesd to 一道英语选择题,快哈My uncle has been in the USA for half a year.He { } the life there.A.is used to B.uesd to C.uses D.is uesd我实在不懂, be uesd as There uesd to be 反义疑问句的回答是什么样的?提问部分,国内英语教学界大多支持didn't there/usedn't there?但是回答呢,是不是Yes, there did. No, there didn't.? 2条英语选择 Is your father a teacher?Well,he___ A uesd to B uesd to use to do be used to do be uesd doing 的差别