For centuries, until the first Americans reached the moon, men speculated as to______.

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问题 For centuries, until the first Americans reached the moon, men speculated as to______.

选项 A、What looked like the satellite’ s other side
B、what the satellite’ s other side looks like
C、what did the satellite’ s other side look like
D、what the satellite’ s other side looks like

答案B

解析这是一道时态题，当表示客观真理或某一客观事实时用一般现在时。

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专业英语四级

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For centuries, until the first Americans reached the moon, men speculated as to______.

专业英语四级

Itisanunderstoodfactthatwaterhelpsmobilizesolublenutrients,transportwastematerialsandregulatesbodytemperature.(

ExperiencedobserversonAmericancampuseshavebeguntonoticeanewgroupofmothersandfathersemergingoverthepasttwoye

WhathappenedattheUnitedNations?Howdidthecriticslikethenewplay?(1)_____aneventtakesplace,newspapersa

Alandfreefromdestruction,pluswealth,naturalresources,andlaborsupply—allthesewereimportant(1)_____inhelpingEngla

Shehadamildattackofhysteria______reachingJamaica,whensherealizedhermotherhadactuallydied.

Itoftenhappensthatanumberofapplicantswithalmostidenticalqualificationsandexperienceallapplyforthesameposition

TheNavyiswarningshipstostayawayfromthecoastofSomaliaafteraseriesof______attacksthere.

Empathy—theabilitytoappreciatethatastrangerstrugglingwithasuitcasenotonlyfindshissituation(1)_____butalsoneeds

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