Before we left the room the chairman made sure________the lights were turned off.

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问题 Before we left the room the chairman made sure________the lights were turned off.

选项 A、if
B、which
C、when
D、that

答案D

解析在我们离开房间之前，董事长要确保所有灯都关了。本题考查连词的用法。make sure后接宾语从句时，引导词一般用that，that可省略。

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成人本科学位英语

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Before we left the room the chairman made sure________the lights were turned off.

成人本科学位英语

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Skepticsofhighereducationoftencomplainthatuniversitiesoffertoomanyboringdegreeswithlittlevalueintheworkplace.【

SelectiveNewYorkCitypublichighschoolsaresupposedtomakeiteasyforfamiliestoseetheirdetailedadmissioncriteria,

[A]Makeitahabit[B]Don’tgoitalone[C]Startlow,goslow[D]Talkwithyourdoctor[E]Listentoyourbo

Peoplehavespeculatedforcenturiesaboutafuturewithoutwork.Todayisnodifferent,withacademics,writers,andactivists

Justsevenyearsago,theTexasLegislatureprescribedthatallhighschoolersmustpasstwomathcoursesandgeometrytogradua

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Thenewsaboutvitaminskeepsgettingworse.Manystudiespublishedinthelastfewyearsshowsthatavarietyofpopularsupple

A)Downloadsoftelevisionprogramsandfilmsfromwebsitesareexpectedtogrowtenfoldtobeworth$6.3bnin2012,althoughso

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