专四专八习题练习

专四专八考试专四考试易错题(2018/3/15)
1题:Astheskygrewdarker,itbecameobvioustousthattheboystofinishthegamequicklyiftheywantedtoavoidthestorm.()
A.have
B.wouldhave
C.oughttohave
D.having
【单选题】:      

2题:Weleftthemeeting,thereobviouslynopointinstaying.()
A.were
B.being
C.tobe
D.having
【单选题】:      

3题:Nowhereinnatureisaluminumfoundfree,owingtoitsalwayswithotherelements,mostcommonlywithoxygen.()
A.beingcombined
B.havingcombined
C.tocombine
D.combined
【单选题】:      

4题:Itisnecessarythatanefficientworkerhisworkontime.()
A.accomplishes
B.canaccomplish
C.accomplish
D.willaccomplish
【单选题】:      

5题:asmuchasone-fourthofalltimberharvestedisnotused.()
A.Theestimate
B.Theestimatethat
C.Theyareestimated
D.Itisestimatedthat
【单选题】:      

 

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