He______have passed the exam, but he was too careless.A、canB、mayC、mustD、could

游客2024-10-17 54

问题 He______have passed the exam, but he was too careless.

选项 A、can
B、may
C、must
D、could

答案 D

解析情态动词题。本题考查情态动词表推测的用法。can have done表示对过去行为的怀疑，用于疑问句，译成“可能做过……吗”；may have done表示对发生过的事情的推测，意思是“可能已经”或“也许已经”，用于肯定句中；must have done表示对过去事情的肯定推测，译成“一定做过某事”，该结构只用于肯定句；could have done意思是本来能够做某事而没有做。根据句意判断，D正确。

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He______have passed the exam, but he was too careless.A、canB、mayC、mustD、could

Threehourshaspassedsincethediscussionwasbegun,andI’mafraidtheywill_

WhenIlookeddownandsawhowfarIhadtojump,mycourage______me.A、passedB、

He______havepassedtheexam,buthewastoocareless.A、canB、mayC、mustD、could

WithhaltingstepsIpacedthestreets,andpassedthe______ofTheCrossedHar

Thestudentsinthedormitorieswereforbidden,unlesstheyhadspecialpassed,

______forthefactthatshebrokeherleg,shemighthavepassedtheexam.（200

Yourwordsmaybecompletely______whenitispassedonthroughdifferentmonths.

Thoughsteamengineshavenowpassedthe______oftheirusefulness,theirherit

HowtoMakeYourFridgeMoreEfficientA)Modernrefrigerators

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三角高程测量中，高差计算公式危=Dtanа+i-ν，式中ν的含义是()。A.

两心房去极化过程的是()。A.心电图的P波 B.心电图的QRS段波群 C.

Thechangeinthatvillagewasmiraculou

酶的特异性是指A.不同细胞含相同酶B.酶是一种蛋白质C.酶对底物有特异选择性D.

下列可治疗反流性食管炎及术后胃肠无力的药物是A.硫酸镁 B.枸橼酸铋钾 C.

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