There used tobe a house __onthe top of the mountain.

There used tobe a house __onthe top of the mountain. i remember when this used tobe a small vallige是什么从句 6.the girl is not ______ she used tobe.A)thatB)whichC)asD)what He is a lazy boy.He sleeping late in the moring.A.used to B.is used to C.was used to D.is used tobe 选哪个 be used for in the end according to fall into listen tobe used for in the end according to fall into listen to 1.A little boy ___the river and remained there for two minutes,then he was saved by a policeman 2.Kites _____sending messages in the past 3 I__upset when i failed in the exam.A be B used to was C use to be D used tobe回答时候请回答为什么谢谢 i'want tobe a psychologist 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 There ___ a museum here. A.used to B.used to do C.used to have D.used to having There＿＿a sports meeting tomorrow afternoon.A.will be going to B.will going to be C.is going tobe D.will go to be Mobile phones used tobe very expensive.转换句型2.Mobile phones used tobe very expensive.Mobile phones _as expensive as they_ _ be. There ( )two English classes tomorrow morning.A:is going to have B:are going to have C:is going tobe D:are going to be 高一英语单选（讲解）1.in my opinion,life in the 21 century is much easier than---A.that used to beB.it is used to Cit was used to D.it used tobe .2.how are the team playing a.got.b.gets.c.are.d.were.the discussion ---.alive when an interest -------- a small book store in thistown.( they used to be ,it used to have ,there used to be ,there used to have) his earnings are only half the amount_____,but he feels that his rise in status is well worth the loss of money.A.as they used to,B.what they used to be C.they used to be D.of they used tobe. 英语中to作介词的短语有哪些如look for aword tobe used to