首页
登录
职称英语
Ensuring an adequate water supply have been a concern ever since people began to
Ensuring an adequate water supply have been a concern ever since people began to
游客
2023-12-04
72
管理
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://tihaiku.com/zcyy/3243548.html
相关试题推荐
Whatisthefirstthingpeopleshouldrememberiftheywanttomakeagoodprese
Whatisthefirstthingpeopleshouldrememberiftheywanttomakeagoodprese
TheChamberlain’sMen,inShakespeare’stime,werearemarkablegroupofpeople-
ConversationalSkillsPeoplewhousuallymakeusfee
ConversationalSkillsPeoplewhousuallymakeusfee
ConversationalSkillsPeoplewhousuallymakeusfee
ConversationalSkillsPeoplewhousuallymakeusfee
ConversationalSkillsPeoplewhousuallymakeusfee
ConversationalSkillsPeoplewhousuallymakeusfee
Growingconcernsoverthesafetyandefficacyofanti-depressantdrugsprescr
随机试题
BasicsaboutSpringBreakSafety1.TravelsafetyValiddriving【T1】______Aw
What’stheshapeofheartintheVolunteersSymbolofBeijingOlympiccomposedo
UnitedNations(UN)isaninternational【C1】______ofcountriescreatedto【C2】
相关系数差异的显著性检验包括()情况。A.两种 B.三种 C.四种 D.六
成人用普通防晒霜中对粪大肠菌群的卫生质量要求是A.不得检出 B.不得大于50个
SSB的产生方法包括滤波法和位移法。()
患者男,35岁。近5年来反复出现上腹部疼痛,尤以饱食后明显。今日出现右上腹剧痛,
男性患者,30岁,4年来先下身渐全身的骨疼痛。1年来行动困难,身高缩短10cm,
下列不可以解除合同的是()。A、因不可抗力致使不能实现合同目的 B、在履
某企业发生火灾事故,从业人员张三看到火势较大快速撤离现场时背部被灼伤,经鉴定达到
最新回复
(
0
)