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

A、It’smoreconvenienttomakechangeswhenusingacomputer.B、Acomputeruseslesspaper.C、It’slessexpensivetousethecom

A、Becausehebelievesnewkindsofmachinerywillbeinvented.B、Becausehebelievesatomicpowerwillbetheonlysortofpower

Afterthisagreementissignedbythetwoparties，bothpartiesshallstrictlyabidebyit．

SinceChinahasalargepopulation,thepopularizationofprivatecarswillonlybringserioussocialproblems.

Thenewstudyaboutwatershortageistakenby______.Accordingtothestudy,thelong-termsolutionstowaterproblemare___

Normally,atthebeginningoftheschoolyear,theStudentServicesofuniversitiesandcollegespublishlistsofroomsandapar

A、Forthepicnictomorrow.B、Forthetripthey’lltake.C、Forthepartytomorrow.D、Forapicnicnextweek.DWhatarethepackag

IntheUnitedStatesandCanada,aprom,shortforpromenade,isaformaldance,orgettingtogetherofhighschoolstudents.It

Weshouldapplyourenergyto______(find)asolutiontotheproblem.

There______animportantreporttomorrowmorning.

为完成拟建工程项目施工，必须发生的技术、生活、安全、环境保护等方面非工程实体项目的名称和相应数量的明细清单，指的是()。

Alpha套利策略又称为“绝对收益策略”。()

甲公司的债务人乙在甲公司的破产案件被人民法院受理后，取得他人对甲公司的债权。乙可以用该债权与其欠甲公司的债务进行抵销。()

word中，能够看到与打印机上打印出来的效果一样的视图方式是（）。

根据所给材料，回答下面问题

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Thenewstudyaboutwatershortageistakenby____.Accordingtothestudy,thelong-termsolutionstowaterproblemare_