Acute hearing helps most animals sense the approach of thunderstorms long before people ______.[2000]

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问题 Acute hearing helps most animals sense the approach of thunderstorms long before people ______.[2000]

选项 A、do
B、hear
C、do them
D、hearing it

答案A

解析在before引导的时间状语从句中使用助动词do来代替sense the approach of thunderstorms，故选项A正确。

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专业英语四级

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Acute hearing helps most animals sense the approach of thunderstorms long before people ______.[2000]

专业英语四级

Twopeoplehadmetthegeneralbefore,but______recognizedhim.

Youcanalwaystellwhetherit’swrittenbyWagnerbecausehehassucha(n)______styleofwriting.

Amotelisusuallyforpeoplewho________.

AsimplepieceofropehangsbetweensomeenvironmentallyfriendlyAmericansandtheirneighbors.Ononesidestandthosewhoha

Mostworthwhilecareersrequiresomekindofspecializedtraining.Ideally,therefore,thechoiceofa(n)【C1】______shouldbema

AlthoughAsiancountriesaregenerallymore______insocialcustomsthanWesterncountries,therehavebeenseveralnotableexam

WhenChristopherColumbuslandedonAmerica’sshores,heencounteredcopper-shinnedpeoplewhomhepromptlycalled"Indians".Cu

Whilethoseearningmaster’s,doctoral,orprofessionaldegreesstillearnmoreduringtheircareersthanthosewithlesseducat

______,wecandonothing.

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少阴经头痛的特征是

下列建设工程合同分析内容中，属于合法性分析的是（）。

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Amotelisusuallyforpeoplewho________.

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