A.backB.blankC.emptyD.nothingThe screen of my computer ……

单项选择题We have had a new computer system（）

A.install
B.installed
C.installing
D.to install

单项选择题I never（）to bed so late.

A.got used to going
B.used to going
C.got usedto go
D.used going

单项选择题We're having some（）problems with our new computer.

A.teeth
B.tooth
C.teethe
D.teething

单项选择题My（）surprise was soon replaced by delight.

A.first
B.starting
C.beginning
D.initial

单项选择题What did you type in? The computer screen showed（）message.

A.error
B.an error
C.wrong
D.mistaken

单项选择题We can't tell you the results until we have looked at（）

A.all the datum
B.the all data
C.all the data
D.the all datum

单项选择题Please go over to your PC and（）

A.boot it up
B.boot up it
C.boot up
D.boot

单项选择题He has（）for music.

A.an intelligence
B.an talent
C.a creativity
D.a mind

单项选择题He was a young sailor on his first sea（）

A.journey
B.trip
C.travel
D.voyage

单项选择题He likes to（）stamps as his hobby.

A.collect
B.raise
C.gather
D.pick

单项选择题He has（）come back from my holiday.

A.simply
B.only
C.just
D.even

单项选择题He took（）part in the activity.

A.an active
B.a dynamic
C.a positive
D.energetic

单项选择题The heavy rain（）the road.

A.hurt
B.injured
C.damaged
D.hazard

单项选择题He is not aware（）what he has done.

A.for
B.to
C.about
D.of

单项选择题（）you involved in the traffic accident?

A.Have
B.Are
C.Do
D.Did