A.awayB.overC.outD.upOur food soon ran（）……

单项选择题Biting your nails is（）habit.

A.an irritated
B.an irritating
C.irritating
D.irritated

单项选择题We are（）how an error like this could have happened.

A.searching
B.researching
C.surveying
D.investigating

单项选择题After two（）delay, our train arrived at last.

A.hours frustrating
B.hours frustrated
C.hours’ frustrating
D.hours’f rustrated

单项选择题The football match was called（）because of the snow

A.off
B.up
C.for
D.in

单项选择题My car（）

A.needs towash
B.needs wash
C.needs washing
D.needs being washed

单项选择题The screen of my computer went（）suddenly.

A.back
B.blank
C.empty
D.nothing

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