He ______ the 8:20 bus because he didn’t leave home till 8:25.

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问题 He ______ the 8:20 bus because he didn’t leave home till 8:25.

选项 A、couldn’t have caught
B、ought to have caught
C、shouldn’t have caught
D、must not have caught

答案A

解析 because引导的分句用了过去时，因此本句是对过去的推测。而根据他出门的时间。可知他肯定没有赶上车，要用couldn’t表否定推测，答案为A项couldn’t have caught。must表推测时只用于肯定句中，ought to have done表示“本应该”，shoudn’t have done表示“本不应该”。

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专业英语四级

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He ______ the 8:20 bus because he didn’t leave home till 8:25.

专业英语四级

(1)AmericansseekingjobsthissideoftheAtlanticshouldbeawarethatsometimesthingsaredonedifferentlyhere.JenniferVe

(1)Theymaybejustpassingyouroffice,computerbagslungoveroneshoulder.Ortheymaybesittinginacaroutsideit,casua

(1)ThedramaticcollapseinAmericanconsumerconfidence,followingtheWorldTradeCenterattack,increasesthelikelihoodthat

EuropeancountrieshavebeencarefullywatchingmeviolencethatexplodedacrossFrance,worriedthattheirvehiclesandbuildin

InTheArtofChoosing,SheenaIyengar,abusinessprofessoratColumbiaUniversityandaleadingexpertondecisionmaking,tel

Aninsuranceagentcalledmethismorning.Thisparticularagentwantedtodiscussmyautomobilecoverage,butthenextagentto

Inthesentence"Allthetaskshavingbeenfulfilledaheadoftime,theydecidedtogoonholidayforaweek",theunderlinedph

Wearedelightedatthenews_____ourdaughterisexpectingababy.

_______heneededmoneyforanewcar,hedecidednottoborrowitfromthebank.

We’vejustinstalledafanto_____cookingsmellsfromthekitchen.

因债权与债务同归于一人而致使合同终止的原因称为

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Itwouldbeinterestingtodiscoverhowmanyyoungpeoplegotouniversitywithoutanyclearideaofwhattheyaregoingtodoa