We in this pond when we were young,but now it _ fish.A.are used to swim,used to keepB.are used to swimming,is used to keepC.used to swim,is used for keepingD.used to swim,used to keep

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We __ in this pond when we were young,but now it ___ fish.A.are used to swim,used to keepB.are used to swimming,is used to keepC.used to swim,is used for keepingD.used to swim,used to keep
We __ in this pond when we were young,but now it ___ fish.A.are used to swim,used to keep
B.are used to swimming,is used to keep
C.used to swim,is used for keeping
D.used to swim,used to keep

We __ in this pond when we were young,but now it ___ fish.A.are used to swim,used to keepB.are used to swimming,is used to keepC.used to swim,is used for keepingD.used to swim,used to keep
C答案是肯定的了,下面我给你解释一下为什么.
要说一下use 这个词的用法.
1：sb used to do sth：某人过去常常做某事,表明现在不这样做了,给你举个例子：
I used to go to school by bus,but I've got a car now.我过去坐公交车上学,但是现在我有车了.
2：be used to：这里要注意,这个后面可以接doing,也可以用do,如果接doing,那这个句子就翻译成“习惯了做某事”例句：I am used to staying up late at night.“我习惯熬夜了”.注意,在这个句子里,to是介词,因此后面要用doing.
如果接do,那就翻译为“被用来做某事的”例句：“this medication is used to get you better"翻译为“这种药是用来让你康复的”,在这里,to不是介词,而是不定式符号,所以后面接动词原形do.
3：be used for：翻译为“被用来做...”后面可以接名词,代词,动名词doing
例句如上句：this medication is used for your recovery“ 这种药是为你康复而用的.
this medication is used for you：这药是用在你身上的.
this medication is used for geting you better,这个句子=this medication is used to get you better,因为for是介词,所以后面接doing.
4：be used by：被...使用的.this medication is used by doctors：医生们都使用这类药物.
be used as：被作为.而使用.sugar can’t be used as salt：糖不能当作盐来用.
希望有助于你.

We __ in this pond when we were young,but now it ___ fish.A.are used to swim,used to keepB.are used to swimming,is used to keepC.used to swim,is used for keepingD.used to swim,used to keep 英语翻译Once,some fish lived in a pond.One evening,some fishermen passed by the pond and saw the fish.This pond is full of fish!they told each other excitedly.We must come back tomorrow morning and catch them!they said.When the eldest of the 英语翻译we __ __ __ __ mountains this saturday No fishing in this pond.（保持原句意思） Don't_____________ we __(be)in this corntry for ten years.we__(make)many friends here. Pond 完成句子英语这把钥匙打不开房子里任何一扇门.（两种表达）This key doesn't__ __ __ the doors in the house.We can't open __ door in the house __ this key. 三道简单的英语填空题,懂的进,1、while walking in the street __ __ __(想出)the idea of solving the problem .2、This is the first time that I __ __ __ __(参观你们的农场)3、We should try to avoid __ __ __ __(犯同样的错误) What's this in English?填空__ __ __ __ __ My uncle ____(leave) in two days We_____(have)rice and fish for supper today.This dolphin show __(begin)at 6:50 p.m.We ___（change）trains at Wuxi.The green's famliy ___(move)to canada later.蟹蟹w还有每题的理由w蟹蟹! 1.The wind made little w() on the pond.2.The local government wants to improve road s() this year,3.The air in the c() is fresh and is good for our health.连词成句1.morning becomes rain this than that heavier the of2.snows home when at heavily it We had __(雪）in March this year那为什么在It snows a lot中，就要加S？ can you __ this word in china __ __ is Alice in this year?Grade Three. We __ three people in my family. we are very __(sleep)in spring. 介词加关系代词填空The teacher __ __ I learnt most was Mrs.Zhu.What's the name of the sport __ __ you go in a boat.Mathematics is the subject __ __ i am most interest.this is the question __ __ we have had a disscussion. 用动词的适当形式填空1.While we __(wait)for the bus yesterday afternoon,a giel __(run)up to us .2.I __(telephone) a friend when Bob __(come)in this morning .3.Jim __(jump)on the bus as it __(move)away.4.While mother __(put)Cathy to bed,the d