首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
外语
Ensuring an adequate water supply have been a concern ever since people began to live in towns and cities.
Ensuring an adequate water supply have been a concern ever since people began to live in towns and cities.
admin
2017-04-23
42
问题
Ensuring an adequate water supply have been a concern ever since people began to live in towns and cities.
选项
答案
have—has
解析
译文:自从人们开始居住在城镇和都市以来,保障足够的水供给一直是个引人关注的问题。
分析:考查主谓一致。主语为动名词短语时,谓语动词应为单数形式,have应改为has。
转载请注明原文地址:https://kaotiyun.com/show/nezK777K
0
专业英语八级
相关试题推荐
FromtheChryslerCorporationtotheCentralIntelligenceAgency,culturaldiversityprogramsareflourishinginAmericanorgani
Despitetheclear-cuttechnologicaladvantages,therailroaddidn’tbecometheprimarymeansoftransportationfornearly20yea
Itwouldhavebeenimpossible,completelyandentirely,foranywomantohavewrittentheplaysofShakespeareintheageofSha
LakeTrummeninsouthernSwedenusedtobeapolluted,weed-chokedmess.Now,aftera$14millioncleanup,batherscrowditscle
Thosesettingmigrationpolicyinrichcountriesfaceanalmostimpossibletask.Thedemandsofdemographyandeconomics—shrinki
Thesuddendeathofanadmiredpublicpersonalwaysseemsanimpossibility.Peopleascribeinvulnerability,nearimmortalityto
IntheUnitedKingdom,thepartywhichwinsthe______numberofseatsintheHouseofCommonsbecomestheofficialOpposition.
Ithasnotbeendeterminedhowyearsseaturtlescanliveintheirnaturalenvironment,buttheywillreachaveryoldageifle
随机试题
Thesefarmersgotagoodharvestlastyear,sothey______abigsumofmoneyfornewfarmmachines.
伸直型肱骨髁上骨折多见于
下列关于委付和代位求偿权关系的提法哪些是正确的?
下列检测内容中,公共广播系统应检测()。
关于西部开发的战略部署,要求根据各地区的区域特征,积极发展有特色的优势产业,推进重点地带开发。以下各地区与其特色农业发展方向相一致的是()。①北疆地区——苹果园、奶业、茶叶②河湟谷地——反季节无公害蔬菜生产基地③渭河平
________是采购计划的细化文件,对采购执行有重要作用。
关于通货膨胀定义的理解,共同的内容包括()。
长度为n的顺序存储线性表中,当在任何位置上插入一个元素概率都相等时,插入一个元素所需移动元素的平均个数为______。
InkeepingwithhercommitmenttoherChristianfaith,SojournerTruthdemonstratedasapublicspeakera_dedicationbothtoth
Xiongan,China.【L1】______ofnationalsignificance.AsChinaentersanewera,Xionganhas【L2】______ofthewholeworld.Wewil
最新回复
(
0
)