He promised me a letter;he ought to______it days ago.

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问题 He promised me a letter;he ought to______it days ago.

选项 A、have written
B、write
C、had written
D、be writing

答案A

解析本题测试的重点是情态动词ought to后不定式的时态形式。根据英语语法规则，ought to或should加不定式原形在时间上相当于动词的现在时；ought to或should加不定式的完成时在时间上相当于动词的过去时或现在完成时。在本句中，时间状语days ago已经决定了句中的谓语动词一定是过去时，即ought to have done something，因此只有A项符合要求，意为“他本该几天前就给我写信了”。

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考博英语

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He promised me a letter;he ought to______it days ago.

考博英语

TheprincipaldutyoftheUnitedNationsistosafeguardthepaceoftheworld.

Duringaninternationalcrisis,many______messageswillgenerallyemanatefromthepresident’soffice.

"Dimpy,"asherfriendscallher,heardaboutthehazardsofsmokinginhealthclass."Theyshowedpicturesoflungsofpeoplew

Hewas______withthedeadlydiseasewhenhewas14,andhassufferedwithitfor10years.

ItisincongruousthatthenumberofBritishinstitutionsofferingMBAcoursesshouldhavegrownby254percentduringaperiodw

Aswithahumanbaby,youmustbepatient______,andunderstandingofyourpet’smistakes.

Theshipswerefound(tobe)(unsuitablefor)theconditions(inwhich)theyhad(supposedly)beenadapted.

Thefactshaveprovedthattheyallhavethe______ofsolvingpracticalproblems.

TheconstitutionalguaranteeoffreespeechmayhavebeenaimedatprotectingnativespeakersofEnglishfromcensorship,butit

Cananimalshaveasenseofhumor?SallyBlanchard,publisherofanewslettercalledthePetBirdReport,thinksapetparrotma

根据划分进出口的标准不同，国际贸易可以分为()

下述有关募穴的概念哪项是错误的

工程咨询者不是()。

当用()等做踢脚板时，饰面板下端应与踢脚板上口齐平，接缝应严密。

国有独资公司的下列事项，必须由国有资产监督管理机构决定的是()。

分散型的商业银行需要建立完善的风险管理部门。()

小王的手机通讯录上有一手机号码，只记下前面8个数字为15903428。但他肯定，后面3个数字全是偶数，最后一个数字是6，且后3个数字中相邻数字不相同，请问该手机号码有多少种可能?

产业结构调整

BritishEducationalSystemI.PrimaryandsecondaryeducationinBritain1)Childrengotoprimaryschoolattheageof【T1】____