专四专八习题练习

专四专八考试专四考试易错题(2017/10/11)
1题:Themillionsofcalculationsinvolved,byhand,wouldhavelostallpracticalvaluebythetimetheywerefinished.()
A.hadtheybeendone
B.theyhadbeendone
C.havingbeendone
D.theyweredone
【单选题】:      

2题:asmuchasone-fourthofalltimberharvestedisnotused.()
A.Theestimate
B.Theestimatethat
C.Theyareestimated
D.Itisestimatedthat
【单选题】:      

3题:Astheskygrewdarker,itbecameobvioustousthattheboystofinishthegamequicklyiftheywantedtoavoidthestorm.()
A.have
B.wouldhave
C.oughttohave
D.having
【单选题】:      

4题:ThisCDcostsmetheoneIboughttheotherday.()
A.asmuchasthreetimes
B.asmuchmoneyasthreetimes
C.threetimesasmuchas
D.threetimesasexpensiveas
【单选题】:      

5题:IamsureMaryhasbeenhereand.()
B.hasdonewhatrequiredher
C.hasdonewhatwas,requiredofher
D.didwhathasbeenrequiredofher
【单选题】:      

 

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