【单选题】 The ultimate cause of the Civil War was the bombardment of Fort Sumter.
A.only
B.final
C.True
D.special
A.only
B.final
C.True
D.special
【单选题】 "The risk" mentioned in the text probably refers to ______.
A.a possibility that there will be more climate changes
B.a potential that sea level will possibly keep rising
C.temperature rises that are expected to affect all countries
D.a prediction warning human beings not to ruin the environment
A.a possibility that there will be more climate changes
B.a potential that sea level will possibly keep rising
C.temperature rises that are expected to affect all countries
D.a prediction warning human beings not to ruin the environment
【单选题】 The long service of decades of the to-be-retired with the company was ________a present each from the President.
A.confirmed by
B.recorded in
C.acknowledged with
D.appreciated for
A.confirmed by
B.recorded in
C.acknowledged with
D.appreciated for
【单选题】 I will never ______ the experiences of the four years at Howard University, though there were unhappy encounters.
A.discharge
B.recharge
C.discard
D.dispose
A.discharge
B.recharge
C.discard
D.dispose
【单选题】 What may be the oldest fossil footprint yet found was discovered in June 1968 by William J. Meister, a non-professional fossil collector.
A.a part-time
B.a spare-time
C.an untrained
D.an amateur
A.a part-time
B.a spare-time
C.an untrained
D.an amateur
【单选题】 ______no friction between the surface of the road and our feet, we could not walk at all.
A.If there was
B.Were there
C.Was there
D.There was
A.If there was
B.Were there
C.Was there
D.There was
【单选题】 When Mary discovered how treacherous the streets could be, she demanded that her boys stay close to her in the church gym and youth center, and the boys were as good as gold, listening to every word she says.
A.very naughty
B.very obedient
C.faithful
D.patient
A.very naughty
B.very obedient
C.faithful
D.patient
【单选题】 American Indian languages, which differ widely, tended to group many units of meaning into multisyllabic words.
A.all tend
B.and tend
C.to tend
D.tending
A.all tend
B.and tend
C.to tend
D.tending
【单选题】 Evidence collected by the spacecraft on Mars shows some present volcanic action, though the volcanoes are believed to be dormant if not dead.
A.deceased
B.departed
C.disappeared
D.extinct
A.deceased
B.departed
C.disappeared
D.extinct
【单选题】 The police let him go, because they didn't find him guilty ______ the murder.
A.of
B.in
C.over
D.on
A.of
B.in
C.over
D.on
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