1英语专业四级语法练习题1
Spaceexplorationpromisestoopenupmanynewterritoriesforhumansettlement,aswellastheharvestofmineralresources
leadstoB
toleadtoC
leadingtoD
leadto2
Someday,solarpowercollectedbysatellitestheearthmaygiveusalltheenergyweneedforanexpandingcivilization
circledB
tocircleC
circlingD
circles3
Inthisexperiment,theyarewakenedseveraltimesduringthenight,andaskedtoreportwhatthey
hadjustbeendreamingB
arejustdreamingC
havejustbeendreamingD
hadjustdreamt4
Herterrorwassogreatsomewheretoescape,shewouldhaverunforherlife
onlyifB
thattherehadonlybeenC
thathadthereonlybeenD
iftherewereonly5
Somewomenagoodsalaryinajobinsteadofstayinghome,buttheydecidednottoworkforthesakeofthefamily
mustmakeB
shouldhavemadeC
wouldmakeD
couldhavemade6
Alightwithnomorepowerthanbyanordinaryelectriclightbulbbecom