首页
登录
职称英语
Most environmental problems would not exist if adequate measures______to prevent
Most environmental problems would not exist if adequate measures______to prevent
游客
2024-07-16
10
管理
问题
Most environmental problems would not exist if adequate measures______to prevent them in the past.
选项
A、are taken
B、was taken
C、have been taken
D、had been taken
答案
D
解析
本题同时考查被动语态和虚拟语气两个知识点。if从句中的时间状语是in the past,表示从句的时态为一般过去时。表示与过去事实相反的情况时,从句谓语动词应该使用“had+过去分词”结构。另外,从句的主语measures和动词take之间存在逻辑上的被动关系,因此需要使用被动语态。结合以上分析,可以确定答案为had been taken,由此确定D)为本题的答案。
转载请注明原文地址:https://tihaiku.com/zcyy/3679163.html
相关试题推荐
Theroadhastobe(wide)______sothattheproblemsoftrafficjamcanbesolved
PleasenotethatfromnextMondayweareintroducinganenvironmentallyfriendly
Therisingpriceofmedicineisamongthemostworryingproblemsfacingthecoun
Theytook______measurestopreventpoisonousgasesfromescaping.A、fruitfulB、
It’sawasteoftime(discuss)______problemswithamanlikehim.discussing本题考查的是
It’shightimewe(take)______propermeasurestocleanourair.took本题考查虚拟语气的用法。
It’shightimewe(take)______propermeasurestocleanourair.took本题考查虚拟语气的用法
PleasenotethatfromnextMondayweareintroducinganenvironmentallyfriendly
Acompanymeetingprovidesanopportunityto_____ideasanddiscussanyproblems
PleasenotethatfromnextMondayweareintroducinganenvironmentallyfriendly
随机试题
Don’tworry,behappyand,accordingtoanewresearch,youwillalsobehea
[img]2018m9s/ct_etoefz_etoeflistz_201808_0029[/img][br]Whatisthelecturemai
ConsumerporcelainsinJingdezhenarenotsellingwellinexportmarketascompa
Theprincipalcharacterinoppositiontotheheroorheroinofanarrativeordr
______you______furtherproblemswithyourprinter,contactyourdealerforadvic
HowShouldTeachersBeRewarded?[A]Weneverforgetourbest
论述我国高等学校行政管理中的问题和改革方向。
为了解决伴随RIP协议的路由环路问题,可以采用水平分割法,这种方法的核心是(
关于企业人力资本描述错误的是()。A.是全体员工实际投入到企业中的人力资本的价
三型观测线的特点是A.为基牙向缺隙方向倾斜时所画出的观测线,此线在基牙的近缺隙侧
最新回复
(
0
)