It was only after some progress ______ in the use and development of electric current that men began to realize the importance a

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问题 It was only after some progress ______ in the use and development of electric current that men began to realize the importance and possibilities of magnetism.

选项 A、had been made
B、would have been made
C、has been made
D、was made

答案A

解析被动语态。make progress in．．．的被动语态是progress is made in...。

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专业英语四级

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It was only after some progress ______ in the use and development of electric current that men began to realize the importance a

专业英语四级

Manylocalauthoritiesrealizetheneedtomake______forelderlypeopleintheirhousingprograms.

WhichofthefollowingstatementsisNOTtrue?

Ourape-menforefathershadnoobviousnaturalweaponsinthestruggleforsurvivalintheopen.Theyhadneitherthepowerfult

Duringrecentyearswehaveheardmuchabout"race":howthisracedoescertainthingsandthatracebelievescertainthingsand

Aestheticthoughtofadistinctivelymodernbentemergedduringthe18thcentury.Thewesternphilosophersandcriticsofthist

Mostchildrenwithhealthyappetitesarereadytoeatalmostanythingthatisofferedtothemandachildrarelydislikesfood【

Sincewearesocialbeings,thequalityofourlivesdependsinlargemeasureonourinterpersonalrelationships.Onestrengtho

The"fatherofwaters",theMississippiRiverisoneofthe【C1】______intheworld.AccordingtotheUnitedStatesArmyCorpsof

Moreoftenthannot,itisdifficultto_________theexactmeaningofaChineseidiominEnglish.

Whatistherelationshipbetweenthespeakers?

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