It was not until he entered the classroom ______ he realized that he had forgotten to do the homework.

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问题 It was not until he entered the classroom ______ he realized that he had forgotten to do the homework.

选项 A、before
B、when
C、then
D、that

答案D

解析此句使用了强调句型，即It is (was)... that....

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专业英语四级

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It was not until he entered the classroom ______ he realized that he had forgotten to do the homework.

专业英语四级

1　　Therearesuperstitionsattachedtonumbers;eventhoseancientGreeksbelievedthatallnumbersandtheirmultipleshadsome

Whatisthepurposeofthisconversation?

Itisprobablethatwhenmenfirstpaintedtheirfacesmany【C1】ofyearsago,itwas【C2】thepurposeoffrightening

Thefitnessmovementthatbeganinthelate1960sandearly1970scenteredaroundaerobicexercise.Millionsofindividualsbeca

Thenewteacherwasverynervous______shewaswellprepared.

ANewNeedforTrafficLightsSpaceisgettingcrowded.That’sthelatestworryformanyscientists.Abouttenthousandobje

Wewillbelateforthetrainunlesswe_ataxiandthere__notrafficjam.

TheannualDecembercommercialsaroundbuyingandexchanginggiftsdon’tusuallyincludeanin-depthdiscussionofthetactand

WhenSpanishfootballclubBarcelonapaidUS$35millionforRonaldinholastsummer,theyweren’tbuyingaprettyface."Iam【C1】

Rumoristhemost【C1】_wayofspreadingstories—bypassingthemonfrommouth【C2】_mouth.Butcivilizedcountriesin

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()决定着生产关系。

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()是教师受聘任教、晋升工资、实施奖惩的依据。

雷兹兰等在对多种有关资料进行综合分析的基础上，依据进化水平的不同将学习分为

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专业英语四级

1 Therearesuperstitionsattachedtonumbers;eventhoseancientGreeksbelievedthatallnumbersandtheirmultipleshadsome

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Itisprobablethatwhenmenfirstpaintedtheirfacesmany【C1】______ofyearsago,itwas【C2】______thepurposeoffrightening

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Thenewteacherwasverynervous______shewaswellprepared.

ANewNeedforTrafficLightsSpaceisgettingcrowded.That’sthelatestworryformanyscientists.Abouttenthousandobje

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TheannualDecembercommercialsaroundbuyingandexchanginggiftsdon’tusuallyincludeanin-depthdiscussionofthetactand

WhenSpanishfootballclubBarcelonapaidUS$35millionforRonaldinholastsummer,theyweren’tbuyingaprettyface."Iam【C1】

Rumoristhemost【C1】_____wayofspreadingstories—bypassingthemonfrommouth【C2】_____mouth.Butcivilizedcountriesin

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()决定着生产关系。

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()是教师受聘任教、晋升工资、实施奖惩的依据。

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Rumoristhemost【C1】_wayofspreadingstories—bypassingthemonfrommouth【C2】_mouth.Butcivilizedcountriesin