If you ______ change your mind, please let us know.

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问题 If you ______ change your mind, please let us know.

选项 A、shall
B、should
C、will
D、would

答案B

解析此题考查虚拟语气的构成。should+动词原形构成的虚拟条件句表示将来不大可能实现的假设，强调偶然实现的可能性。另外还有两种表示对将来可能出现的情况的假设：由动词的过去式和由“were+to+动词原形”构成。“were+to+动词原形”比较正式，常用于书面语中，其假想性强，实现的可能性最小，should次之，过去式更次之。

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专业英语四级

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If you ______ change your mind, please let us know.

专业英语四级

PassageFourWhat’sthefunctionofthe4thparagraphinthepassage?

Theroleofteachersineducationextendspastresponsibilityofpassingalonginformation.Asthenamesuggests,theprimaryf

PeoplewhohaveInternetaccessathomearemorelikelytobeinarelationship,withtheWebgaininginimportanceasameetin

Morethanonecar________inthetrafficaccidentleadingtothetragicdeathofPrincessDiana.

Thereseemsnevertohavebeenacivilizationwithouttoys,butwhenandhowtheydevelopedisunknown.Theyprobablycameabout

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FormorethanfivethousandyearsChinesedoctorshaveusedneedlestofightillness.Thiskindofmedicineiscalledacupunc

NapoleonfamouslydescribedtheBritishasanationofshopkeepers.Thesedaysitwouldbeequallytruetodescribethemasana

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