I______have written to him because he phoned me shortly afterwards.

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问题 I______have written to him because he phoned me shortly afterwards.

选项 A、needn’t
B、oughtn’t to
C、wouldn’t
D、shouldn’t

答案A

解析 needn’t have done sth．表示过去做了某事，但事后证明没有必要做。oughtn’t to／shouldn’t have done sth．表示过去做了不该做的事；wouldn’t have done sth．用在虚拟条件句过去时的主句中，表示如果具备了所指的条件就不会做某事。

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考博英语

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I______have written to him because he phoned me shortly afterwards.

考博英语

Intheprecedingchapter,economicwelfarewastakenbroadlytoconsistofthatgroupofsatisfactionsanddissatisfactionswhic

Theyoungmanwasdeeplyhurtbecausehisproposalwasrejectedand,toacertainextent,______atbythegroup’smembers.

Theskinoftheforestkeeper______exposuretotheharshnorthwestweather.

TwothirdsoftheUSbasketballplayersareblack,andthenumberwouldbegreater______thecontinuingpracticeofpickingwh

Thedoctorswereworriedbecausethepatientdidnotrecuperateasrapidlyastheyhadexpected.

"Dimpy,"asherfriendscallher,heardaboutthehazardsofsmokinginhealthclass."Theyshowedpicturesoflungsofpeoplew

Theprisoner______thathehadassaultedapoliceman.

Theteacherofreadingisinvolved,whetherthisisconsciouslyrealizedornot,inthedevelopmentofaliteratesociety.Ande

Formostofus.theworkisthecentral,dominatingfactoflife.Wespendmorethanhalfourconscioushoursatwork,preparing

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