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

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


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1.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

2.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

3.单项选择题He has()for music.

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

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

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

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

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

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

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

7.单项选择题He took()part in the activity.

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

8.单项选择题The heavy rain()the road.

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

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

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

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

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