there used to 没有be动词 英语高手请过来看看 有个听力 里面有这样的对话：But you are saying tomatoes too?I just assume since there used to so manyItalian dishes.there used to so many Italian dishes.这里怎么没用be动词

be used to +动词?名词? 谁能告诉我 有没有there is used to be there used to 没有be动词 英语高手请过来看看 有个听力 里面有这样的对话：But you are saying tomatoes too?I just assume since there used to so manyItalian dishes.there used to so many Italian dishes.这里怎么没用be动词 used to be是系动词吗! be used to doingUSED是什么词?动词? there used to be的意思!RT, 请问 There used to be a park. 动词过去式+to+be是什么语法?比如 used to be be used to ,be used for有什么区别be used to 后跟动词的那种形式,be used for后跟动词的那种形式 There used to be反意疑问句There used to be a cinema here,的反意疑问句用Be动词还是用did?这种用法有什么规则? ______ 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 used to反意疑问句There used to be a lot of trees.变反义疑问句有没有 used not there的或者是usen’t的?或者did not there? be used to和used to的to是介词还是动词不定式?为什么? -------- a small book store in thistown.( they used to be ,it used to have ,there used to be ,there used to have) 请问be动词必须得放到used to后面吗? get used to 和be used to 哪个加doing 哪个加动词原形啊! used to后可以加情态动词吗?例如：it used to should be.