A man escaped from the prison last night. It was a long time ______ the guards d

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问题 A man escaped from the prison last night. It was a long time ______ the guards discovered what had happened.

选项 A、before
B、until
C、since
D、when

答案 A

解析考查It is...before的用法。犯人越狱发生在警卫发现之前，It is...before意为“(……之后，)才……”，符合题意，为正确答案，又如：It was several months before I was fit for the job．(几个月后我才适应了这工作。)until意为“直到……为止，直到……才”，一般不用于It is...until肯定句中，例如：They drank on until midnight(他们一直喝到半夜。)

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A man escaped from the prison last night. It was a long time ______ the guards d

Taylorwasarrestedand______sentencedtothreeyears’imprisonment.A、successi

______wasdrunkagainlastnight.A、ThatbrotherofyoursB、ThatyourbrotherC、

Theprisonerpleadedthathe_____allowedtoseehisfamily,whodidnotknowo

John’sscoreonthetestisthehighestintheclass;he______lastnight.A、mus

"Tinalooksespeciallyprettytonight.""Yes,shealwayslooksherbestin_

It’stime__aboutthenoisepollutionlateatnight.A、somethingwillbedoneB、

Whywastheyoungwomanheldupinthefederalimprisonmentcenter?[originaltex

Whatisthenewsmainlyabout?[br][originaltext]Twooftheprisonersrel

Whatisthenewsmainlyabout?[originaltext]Twooftheprisonersreleased

Nobody______theguardswasinthebuilding.A、butforB、apartfromC、exceptD、i

Einsteinalmostknockedmedown______hesawme.A、untilB、afterC、beforeD、asC

Hergoodlooksandconfident,______mannermadeherthecentreofattention.A、el

A—WorldTelecommunicationsDayB—WorldMeteorologicalDayC—WorldTuberculosisD

每天下班时，我通常会（）。A.准时离开 B.避开下班人流高峰再走 C.把明

A公司只经营一种产品，该产品的销售单价为10元/件，单位贡献毛益是4元/件，固定

患者，男，30岁。体温达39.3℃，咳嗽明显，有乏力、盗汗，痰结核菌阳性，诊断“

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