Li Lei didn’t meet the famous American professor______ he was on holiday in America last year.

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问题 Li Lei didn’t meet the famous American professor______ he was on holiday in America last year.

选项 A、unless
B、until
C、if
D、whether

答案B

解析本题考查的是由not…until引导的时间状语从句，表示“直到……才”，故B项为正确答案。又如：I didn’t sleep until my mother got home．(直到妈妈回到家，我才入睡。)如果放于句首，句子要倒装，如：Not until mid-night did his father stop working．(直到午夜他父亲才停止工作。)

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本试题收录于：大学英语三级A级题库大学英语三级分类

大学英语三级A级

大学英语三级

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Li Lei didn’t meet the famous American professor______ he was on holiday in America last year.

大学英语三级A级

大学英语三级

OvertheThanksgivingweekend,peopleboughtalotmorethanusualbecause______.Bysaying"Ifeellikeakidinacandystor

To:SalesStaffFrom:RobertWebster,managerofSalesDate:March,8,2005Subject:QuarterlySalesFiguresI’veju

A、Havearest.B、Takeawalk.C、Haveadrink.D、Gettosleep.BWhatdoesheliketodointheearlymorning?

Doyouagreethatitisimportanttomakeyourself(understand)______

Lindafeelsexhaustedbecauseshe______somanyvisitorstoday.

Intermsoftheeconomicsituation,thepolicyhasbeenlargelyineffective.

WorkisaveryimportantpartoflifeintheUnitedStates.Americansspendmostoftheirlivesworking.FormostAmericans,the

Theprojectwasnotactuallyrealizedasitwasnotvery(practice)______.

Wearenotshortofrawmaterialsatthemoment,butweneedreliable(equip)______.

______isoftenthecase,onethirdoftheworkershaveover-fulfilledtheproductionplan.

A．乙状结肠和直肠B．回肠C．结肠，特别是乙状结肠D．回盲部肠结核病常累及

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