It is absolutely necessary for us to have sufficient oxygen if we______to go on living.

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问题 It is absolutely necessary for us to have sufficient oxygen if we______to go on living.

选项 A、are
B、were
C、had
D、having

答案A

解析 if we are to go on living=if we want to go on living“如果我们想要继续生存的话”。本题不属于纯假设的虚拟条件句。

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考研英语一

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It is absolutely necessary for us to have sufficient oxygen if we______to go on living.

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Havetherealwaysbeencities?Thetrendiscitiesareincreasinglybecomingthedominantmodeofman’ssocialexistence.【F1】It

ErnestHemingwaywasoneofthemostimportantAmericanwritersinthehistoryofcontemporaryAmericanliterature.Hewasthe【C

Oneofthebiggestbarrierstoeffectivenegotiationandamajorcauseofstalemateisthetendencyforbargainerstogettrappe

Dopeoplegethappierormorefoul-temperedastheyage?Stereotypesofirritableneighbors【C1】______,scientistshavebeentryi

Life,atleastforaseed,isbetteroutintheworld.【R1】______Seedsknowhowtogetaround.【R2】______Buttheyallhavethes

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